【涂鸦T2-U】2、添加光感bh1750

文章目录

前言

本章介绍如何在涂鸦T2-U开发板上添加光感bh1750驱动并实现定时读取数据。

一、基础介绍

BH1750( GY-302 )光照传感器

这篇文章有bh1750的基础介绍。

我这里总结一下。

bh1750采用i2c通信,有5个引脚,vcc,gnd,sda,scl,add。

其中add接gnd时i2c地址为0x23,接vcc为0x5c。

模式:

三种分辨率模式,H(1lx),H2(0.5lx),L(41lx),其中1lx表示返回的数值1表示1lx,用于计算实际lx。

两种测试:连续,一次。

总共组合就是6中,常用的是一次H分辨率模式。

指令:

以一次H分辨率模式为例。

  1. 软重置:__bh1750_write_cmd(dev, BH1750_CMD_SOFT_RESET);
  2. 设置模式:__bh1750_write_cmd(dev, BH1750_CMD_ONE_H_RES_MODE);
  3. 等待采样:__bh1750_delay_ms(180);
  4. 读取采样值:__bh1750_read_data(dev, 2, buf);

如上述四步就可以读取到光感数据,剩下的就是实现接口和数据处理。

二、电路图

2.1 电路图1

一开始我打算使用默认的pin28和pin29作为sda和scl,但是不知道是不是和打开了串口调试开关有关,i2c通信失败,后续采用了20,22。

注意,虽然图上标的是p1和p0,但是对应的pin应该是28,29。

2.2 电路图2------实际采用

三、代码

代码基于tuyaos_sensor_hub_demo_quickstart实现的。

需要复制该项目,并仿照温感sht30的驱动,添加bh1750驱动。

tdd_sensor_light.h

c 复制代码
/**
 * @file tdd_sensor_light.h
 * @brief tdd_sensor_light module is used to drive light & humidity sensor
 * @version 0.1
 * @date 2022-08-03
 */

#ifndef __TDD_SENSOR_LIGHT_H__
#define __TDD_SENSOR_LIGHT_H__

#include "tdl_sensor_type.h"
#include "tdd_sensor_i2c.h"

#ifdef __cplusplus
extern "C" {
#endif

/***********************************************************
************************macro define************************
***********************************************************/
/**
 * @brief element list
 */
#define SR_LT_ELE_ID_LIGHT           0x00
#define SR_LT_ELE_NUM               0x01

/**
 * @brief command list
 */
#define SR_LT_CMD_SOFT_RESET        0x00    // soft reset, param: none
#define SR_LT_CMD_GET_SERIAL_NBR    0x01    // read serial number, param: SR_LT_CMD_READ_SERIAL_NBR
#define SR_LT_CMD_SET_PREC          0x02    // set measurement precision, param: SR_LT_PREC_E
#define SR_LT_CMD_SET_FREQ          0x03    // set measurement frequency, param: SR_LT_FREQ_E
#define SR_LT_CMD_SET_ALT_LIMIT     0x04    // set alert thresholds, param: SR_LT_LIMIT_T
#define SR_LT_CMD_GET_ALT_LIMIT     0x05    // get alert thresholds, param: SR_LT_LIMIT_T
#define SR_LT_CMD_ENABLE_ALT_PIN    0x06    // enable alert pin, param: SR_LT_ALT_PIN_T
#define SR_LT_CMD_DISABLE_ALT_PIN   0x07    // disable alert pin, param: TKL_GPIO_NAME_E
#define SR_LT_CMD_GET_STATUS        0x08    // read status register, param: SR_LT_STATUS_U
#define SR_LT_CMD_CLR_STATUS        0x09    // clear status register, param: none
#define SR_LT_CMD_ENABLE_HEATER     0x0A    // enable heater, param: none
#define SR_LT_CMD_DISABLE_HEATER    0x0B    // disable heater, param: none
#define SR_LT_CMD_ACTIVATE_HEATER   0x0C    // activate heater for a while, param: SR_LT_HEATER_T

/**
 * @brief I2C address list
 */
#define SR_I2C_ADDR_BH1750_A         0x23    // BH1750 : ADDR pin - GND
#define SR_I2C_ADDR_BH1750_B         0x5c    // BH1750 : ADDR pin - VCC
// #define SR_I2C_ADDR_SHT4X_A         0x44    // SHT4x-A */
// #define SR_I2C_ADDR_SHT4X_B         0x45    // SHT4x-B */
// #define SR_I2C_ADDR_CHT8305_A       0x40    // CHT8305 : AD0 pin - GND
// #define SR_I2C_ADDR_CHT8305_B       0x44    // CHT8305 : AD0 pin - VCC
// #define SR_I2C_ADDR_CHT8305_C       0x48    // CHT8305 : AD0 pin - SDA
// #define SR_I2C_ADDR_CHT8305_D       0x4C    // CHT8305 : AD0 pin - SCL


/***********************************************************
***********************typedef define***********************
***********************************************************/
/**
 * @brief measurement precision
 *        enum value for SR_LT_CMD_SET_PREC
 */
typedef BYTE_T SR_LT_PREC_E;
#define SR_LT_PREC_HIGH             0x00
#define SR_LT_PREC_MEDIUM           0x01
#define SR_LT_PREC_LOW              0x02
#define SR_LT_PREC_INVALID          0x03

/**
 * @brief measurement frequency
 *        enum value for SR_LT_CMD_SET_FREQ
 */
typedef BYTE_T SR_LT_FREQ_E;
#define SR_LT_FREQ_ONE              0x00
#define SR_LT_FREQ_CON              0x01
#define SR_LT_FREQ_INVALID          0x02

/**
 * @brief heater work power
 *        enum value for SR_LT_CMD_ACTIVATE_HEATER
 */
typedef BYTE_T SR_LT_HEATER_PWR_E;
#define SR_LT_HEATER_PWR_HIGH       0x00
#define SR_LT_HEATER_PWR_MEDIUM     0x01
#define SR_LT_HEATER_PWR_LOW        0x02
#define SR_LT_HEATER_PWR_INVALID    0x03

/**
 * @brief heater work time
 *        enum value for SR_LT_CMD_ACTIVATE_HEATER
 */
typedef BYTE_T SR_LT_HEATER_TIM_E;
#define SR_LT_HEATER_TIM_LONG       0x00
#define SR_LT_HEATER_TIM_SHORT      0x01
#define SR_LT_HEATER_TIM_INVALID    0x02

/**
 * @brief I2C configuration
 */
typedef struct {
    UCHAR_T         port;
    UCHAR_T         addr;
    SR_I2C_GPIO_T   gpio;
} SR_LT_I2C_CFG_T;

/**
 * @brief measurement configuration
 *        param type for tdd_sensor_bh1750_register
 */
typedef struct {
    SR_LT_PREC_E prec;
    SR_LT_FREQ_E freq;
} SR_LT_MEAS_CFG_T;

/**
 * @brief alert limit
 *        param type for SR_LT_CMD_SET_ALT_LIMIT
 *                   and SR_LT_CMD_GET_ALT_LIMIT
 *        light_range: -40 ~ 125 (°C)
 *        humi_range:   0 ~ 100 (%RH)
 */
typedef struct {
    SR_VAL_U light_high_set;
    SR_VAL_U light_high_clear;
    SR_VAL_U light_low_set;
    SR_VAL_U light_low_clear;
} SR_LT_LIMIT_T;

/**
 * @brief alert pin configuration
 *        param type for SR_LT_CMD_ENABLE_ALT_PIN
 */
typedef struct {
    TUYA_GPIO_NUM_E pin;
    TUYA_GPIO_IRQ_T irq;
} SR_LT_ALT_CFG_T;

/**
 * @brief heater configuration
 *        param type for SR_LT_CMD_ACTIVATE_HEATER
 */
typedef struct {
    SR_LT_HEATER_PWR_E power;
    SR_LT_HEATER_TIM_E time;
} SR_LT_HEATER_T;

/**
 * @brief status register value
 *        param type for SR_LT_CMD_GET_STATUS
 */
typedef union {
    // little-endian
    struct {
        USHORT_T crc_status     : 1;
        USHORT_T cmd_status     : 1;
        USHORT_T reserve0       : 2;
        USHORT_T reset_detected : 1;
        USHORT_T reserve1       : 5;
        USHORT_T light_alert     : 1;
        USHORT_T humi_alert     : 1;
        USHORT_T reserve2       : 1;
        USHORT_T heater_status  : 1;
        USHORT_T reserve3       : 1;
        USHORT_T alert_pending  : 1;
    } bit;
    // can use "word" directly
    USHORT_T word;
} SR_LT_STATUS_U;

/**
 * @brief serial number
 *        param type for SR_LT_CMD_READ_SERIAL_NBR
 */
typedef struct {
    UINT_T val;
} SR_LT_SERIAL_NBR_T;

/***********************************************************
********************function declaration********************
***********************************************************/
/**
 * @brief register bh1750 device
 *
 * @param[in] name: device name
 * @param[in] i2c_cfg: i2c configuration
 * @param[in] meas_cfg: measurement configuration
 *
 * @return OPRT_OK on success, others on error
 */
OPERATE_RET tdd_sensor_bh1750_register(IN CHAR_T *name, IN SR_LT_I2C_CFG_T i2c_cfg, IN SR_LT_MEAS_CFG_T meas_cfg);

#ifdef __cplusplus
}
#endif

#endif /* __TDD_SENSOR_LIGHT_H__ */

app_light.h

c 复制代码
/**
 * @file app_light.h
 * @brief RH-T sensor application demo
 * @version 0.1
 * @date 2022-09-01
 */

#ifndef __APP_LIGHT_H__
#define __APP_LIGHT_H__

#include "tuya_cloud_com_defs.h"

#ifdef __cplusplus
extern "C" {
#endif

/***********************************************************
************************macro define************************
***********************************************************/
/*
 *@brief product id define
*/
#define PID "8q46zzdfuofastqr"

/**
 * @brief function define
 */
#define APP_LIGHT_READ_CYCLE            2  * 1000               // units:ms
#define APP_LIGHT_REPORT_CYCLE          10 * 1000               // units:ms

/**
 * @brief pin define
 */
#define BH1750_SCL_PIN   GPIO_NUM_20
#define BH1750_SDA_PIN   GPIO_NUM_22
#define BH1750_ALT_PIN   GPIO_NUM_14

/**
 * @brief DP list
 */
#define DP_ID_LIGHT      1

#define DP_ID_LIGHT_MAX  10
#define DP_ID_LIGHT_MIN  11

#define DP_ID_LIGHT_ALT  12

#define DP_ID_SWITCH    21

#define MAX_DP_NUM          9

/**
 * @brief Data scale
 */
#define LIGHT_SCALE      1           // raw-data * 10

/**
 *@brief report interval
 */
#define APP_LIGHT_REPORT_INTERVAL        20          // default: 2.0 ℃

/**
 *@brief kv key name
 */
#define KEY_NAME "light"

/***********************************************************
***********************typedef define***********************
***********************************************************/

/***********************************************************
********************function declaration********************
***********************************************************/
/**
 * @brief light main
 *
 * @param none
 *
 * @return OPRT_OK on success. Others on error, please refer to "tuya_error_code.h"
 */
OPERATE_RET app_light_init(VOID_T);

/**
 * @brief DP processing
 *
 * @param[in] dp: dp data
 *
 * @return none
 */
VOID_T app_light_dp_proc(CONST TY_OBJ_DP_S *dp);

/**
 * @brief report all DP data
 *
 * @param none
 *
 * @return none
 */
VOID_T app_light_repo_all_dp(VOID_T);

#ifdef __cplusplus
}
#endif

#endif /* __APP_LIGHT_H__ */

tdd_sensor_bh1750.c

c 复制代码
/**
 * @file tdd_sensor_bh1750.c
 * @brief tdd_sensor_bh1750 module is used to drive bh1750 chip
 * @version 0.1
 * @date 2022-08-03
 */

#include "tdl_sensor_driver.h"
#include "tdd_sensor_light.h"
#include "tkl_gpio.h"
#include "tal_system.h"
#include "tal_log.h"

/***********************************************************
************************macro define************************
***********************************************************/
/**
 * @brief CRC result
 */
#define CRC_OK                      (0)
#define CRC_ERR                     (-1)

/**
 * @brief work status
 */
#define BH1750_CLOSE                 0
#define BH1750_OPEN                  (!BH1750_CLOSE)

/**
 * @brief resource array index
 */
#define BH1750_RSRC_INDEX_STAT       0
#define BH1750_RSRC_INDEX_ADDR       1
#define BH1750_RSRC_INDEX_PREC       2  // H-Resolution Mode/H-Resolution Mode2/L-Resolution
#define BH1750_RSRC_INDEX_FREQ       3  // one/continue
#define BH1750_RSRC_INDEX_RESL       4  // mode match value, such as H=1,H2=0.5,L=41

/***********************************************************
***********************typedef define***********************
***********************************************************/
/**
 * @brief bh1750 command
 */
typedef USHORT_T BH1750_CMD_E;


#define BH1750_CMD_POWER_DOWN   	    0x00	// power down
#define BH1750_CMD_POWER_ON			    0x01	// power on
#define BH1750_CMD_SOFT_RESET			0x07	// reset


#define BH1750_CMD_CON_H_RES_MODE	    0x10	// Continuously H-Resolution Mode
#define BH1750_CMD_CON_H_RES_MODE2	    0x11	// Continuously H-Resolution Mode2
#define BH1750_CMD_CON_L_RES_MODE	    0x13	// Continuously L-Resolution Mode
#define BH1750_CMD_ONE_H_RES_MODE	    0x20	// One Time H-Resolution Mode
#define BH1750_CMD_ONE_H_RES_MODE2	    0x21	// One Time H-Resolution Mode2
#define BH1750_CMD_ONE_L_RES_MODE	    0x23	// One Time L-Resolution Mode



// #define BH1750_CMD_SOFT_RESET        0x30A2  // soft reset
#define BH1750_CMD_READ_SERIALNBR    0x3780  // read serial number
#define BH1750_CMD_HEATER_ENABLE     0x306D  // enabled heater
#define BH1750_CMD_HEATER_DISABLE    0x3066  // disable heater
#define BH1750_CMD_READ_STATUS       0xF32D  // read status register
#define BH1750_CMD_CLEAR_STATUS      0x3041  // clear status register
#define BH1750_CMD_ART               0x2B32  // activate ART
#define BH1750_CMD_BREAK             0x3093  // stop periodic data acquisition mode
#define BH1750_CMD_FETCH_DATA        0xE000  // readout measurements for periodic mode
#define BH1750_CMD_MEAS_PERI_05_H    0x2032  // measurement: periodic 0.5 mps, high repeatability
#define BH1750_CMD_MEAS_PERI_05_M    0x2024  // measurement: periodic 0.5 mps, medium repeatability
#define BH1750_CMD_MEAS_PERI_05_L    0x202F  // measurement: periodic 0.5 mps, low repeatability
#define BH1750_CMD_MEAS_PERI_1_H     0x2130  // measurement: periodic 1 mps, high repeatability
#define BH1750_CMD_MEAS_PERI_1_M     0x2126  // measurement: periodic 1 mps, medium repeatability
#define BH1750_CMD_MEAS_PERI_1_L     0x212D  // measurement: periodic 1 mps, low repeatability
#define BH1750_CMD_MEAS_PERI_2_H     0x2236  // measurement: periodic 2 mps, high repeatability
#define BH1750_CMD_MEAS_PERI_2_M     0x2220  // measurement: periodic 2 mps, medium repeatability
#define BH1750_CMD_MEAS_PERI_2_L     0x222B  // measurement: periodic 2 mps, low repeatability
#define BH1750_CMD_MEAS_PERI_4_H     0x2334  // measurement: periodic 4 mps, high repeatability
#define BH1750_CMD_MEAS_PERI_4_M     0x2322  // measurement: periodic 4 mps, medium repeatability
#define BH1750_CMD_MEAS_PERI_4_L     0x2329  // measurement: periodic 4 mps, low repeatability
#define BH1750_CMD_MEAS_PERI_10_H    0x2737  // measurement: periodic 10 mps, high repeatability
#define BH1750_CMD_MEAS_PERI_10_M    0x2721  // measurement: periodic 10 mps, medium repeatability
#define BH1750_CMD_MEAS_PERI_10_L    0x272A  // measurement: periodic 10 mps, low repeatability
#define BH1750_CMD_MEAS_POLLING_H    0x2400  // measurement: polling, high repeatability
#define BH1750_CMD_MEAS_POLLING_M    0x240B  // measurement: polling, medium repeatability
#define BH1750_CMD_MEAS_POLLING_L    0x2416  // measurement: polling, low repeatability
#define BH1750_CMD_MEAS_CLOCKSTR_H   0x2C06  // measurement: clock stretching, high repeatability
#define BH1750_CMD_MEAS_CLOCKSTR_M   0x2C0D  // measurement: clock stretching, medium repeatability
#define BH1750_CMD_MEAS_CLOCKSTR_L   0x2C10  // measurement: clock stretching, low repeatability
#define BH1750_CMD_W_AL_LIM_HS       0x611D  // write alert limits, high set
#define BH1750_CMD_W_AL_LIM_HC       0x6116  // write alert limits, high clear
#define BH1750_CMD_W_AL_LIM_LC       0x610B  // write alert limits, low clear
#define BH1750_CMD_W_AL_LIM_LS       0x6100  // write alert limits, low set
#define BH1750_CMD_R_AL_LIM_LS       0xE102  // read alert limits, low set
#define BH1750_CMD_R_AL_LIM_LC       0xE109  // read alert limits, low clear
#define BH1750_CMD_R_AL_LIM_HS       0xE11F  // read alert limits, high set
#define BH1750_CMD_R_AL_LIM_HC       0xE114  // read alert limits, high clear

/***********************************************************
********************function declaration********************
***********************************************************/

/***********************************************************
***********************variable define**********************
***********************************************************/
/**
 * @brief element value type
 */
#if (SR_CONFIG_NO_FPU == 1)
STATIC SR_ELE_CFG_T sg_ele_val_tp[SR_LT_ELE_NUM] = {
    {
        .id     = SR_LT_ELE_ID_LIGHT,
        .val_tp = SR_VAL_TP_INT,
    }
};
#else
STATIC SR_ELE_CFG_T sg_ele_val_tp[SR_LT_ELE_NUM] = {
    {
        .id     = SR_LT_ELE_ID_LIGHT,
        .val_tp = SR_VAL_TP_FLOAT,
    }
};
#endif

/***********************************************************
***********************function define**********************
***********************************************************/
/**
 * @brief delay (ms)
 *
 * @param[in] tm: delay time
 *
 * @return none
 */
STATIC VOID_T __bh1750_delay_ms(IN CONST ULONG_T tm)
{
    tal_system_sleep(tm);
}

/**
 * @brief get CRC8 value for bh1750
 *
 * @param[in] data: data to be calculated
 * @param[in] len: data length
 *
 * @return CRC8 value
 */
STATIC UCHAR_T __bh1750_get_crc8(IN CONST UCHAR_T *data, IN USHORT_T len)
{
    UCHAR_T i;
    UCHAR_T crc = 0xFF;

    while (len--) {
        crc ^= *data;

        for (i = 8; i > 0; --i) {
            if (crc & 0x80) {
                crc = (crc << 1) ^ 0x31;
            } else {
                crc = (crc << 1);
            }
        }
        data++;
    }

    return crc;
}

/**
 * @brief check CRC8
 *
 * @param[in] data: data to be checked
 * @param[in] len: data length
 * @param[in] crc_val: crc value
 *
 * @return check result
 */
STATIC INT_T __bh1750_check_crc8(IN CONST UCHAR_T *data, IN CONST USHORT_T len, IN CONST UCHAR_T crc_val)
{
    if (__bh1750_get_crc8(data, len) != crc_val) {
        return CRC_ERR;
    }
    return CRC_OK;
}

/**
 * @brief read data from bh1750
 *
 * @param[in] dev: device resource
 * @param[in] len: data length
 * @param[out] data: data received from bh1750
 *
 * @return none
 */
STATIC OPERATE_RET __bh1750_read_data(IN CONST SR_RSRC_T *dev, IN CONST USHORT_T len, OUT UCHAR_T *data)
{
    SR_I2C_MSG_T rd_msg = {
        .flags = SR_I2C_FLAG_RD,
        .addr = dev->info[BH1750_RSRC_INDEX_ADDR],
        .len = len,
        .buff = data
    };

    return tdd_sensor_i2c_xfer(dev->port, &rd_msg);
}

/**
 * @brief write command to bh1750
 *
 * @param[in] dev: device resource
 * @param[in] cmd: control command
 *
 * @return none
 */
STATIC OPERATE_RET __bh1750_write_cmd2(IN CONST SR_RSRC_T *dev, IN CONST BH1750_CMD_E cmd)
{
    UCHAR_T cmd_bytes[2];
    cmd_bytes[0] = (UCHAR_T)(cmd >> 8);
    cmd_bytes[1] = (UCHAR_T)(cmd & 0x00FF);

    SR_I2C_MSG_T wr_msg = {
        .flags = SR_I2C_FLAG_WR,
        .addr = dev->info[BH1750_RSRC_INDEX_ADDR],
        .len = 2,
        .buff = cmd_bytes
    };

    return tdd_sensor_i2c_xfer(dev->port, &wr_msg);
}

STATIC OPERATE_RET __bh1750_write_cmd(IN CONST SR_RSRC_T *dev, IN CONST BH1750_CMD_E cmd)
{
    UCHAR_T cmd_bytes;
    cmd_bytes = (UCHAR_T)(cmd & 0xFF);

    SR_I2C_MSG_T wr_msg = {
        .flags = SR_I2C_FLAG_WR,
        .addr = dev->info[BH1750_RSRC_INDEX_ADDR],
        .len = 1,
        .buff = &cmd_bytes
    };

    // TAL_PR_ERR("[BH1750] addr=0x%02x, cmd=0x%02x",dev->info[BH1750_RSRC_INDEX_ADDR], cmd_bytes);

    return tdd_sensor_i2c_xfer(dev->port, &wr_msg);
}

/**
 * @brief write command and data to bh1750
 *
 * @param[in] dev: device resource
 * @param[in] cmd: control command
 * @param[in] data: data to be written
 *
 * @return none
 */
STATIC VOID_T __bh1750_write_2bytes_data(IN CONST SR_RSRC_T *dev, IN CONST BH1750_CMD_E cmd, IN CONST USHORT_T data)
{
    UCHAR_T buf[5];
    buf[0] = (UCHAR_T)(cmd >> 8);
    buf[1] = (UCHAR_T)(cmd & 0x00FF);
    buf[2] = (UCHAR_T)(data >> 8);
    buf[3] = (UCHAR_T)(data & 0x00FF);
    buf[4] = __bh1750_get_crc8(buf+2, 2);

    SR_I2C_MSG_T wr_msg = {
        .flags = SR_I2C_FLAG_WR,
        .addr = dev->info[BH1750_RSRC_INDEX_ADDR],
        .len = 5,
        .buff = buf
    };

    tdd_sensor_i2c_xfer(dev->port, &wr_msg);
}

/**
 * @brief start periodic measurement
 *
 * @param[in] dev: device resource
 *
 * @return none
 */
STATIC VOID_T __bh1750_start_periodic_measurement(IN CONST SR_RSRC_T *dev)
{
    switch (dev->info[BH1750_RSRC_INDEX_PREC]) {
    default:
    case SR_LT_PREC_HIGH:
        switch (dev->info[BH1750_RSRC_INDEX_FREQ]) {
            case SR_LT_FREQ_ONE:
                __bh1750_write_cmd(dev, BH1750_CMD_ONE_H_RES_MODE);
                break;
            case SR_LT_FREQ_CON:
                __bh1750_write_cmd(dev, BH1750_CMD_CON_H_RES_MODE);
                break;
        }
        break;

    case SR_LT_PREC_MEDIUM:
        switch (dev->info[BH1750_RSRC_INDEX_FREQ]) {
            case SR_LT_FREQ_ONE:
                __bh1750_write_cmd(dev, BH1750_CMD_ONE_H_RES_MODE);
                break;
            case SR_LT_FREQ_CON:
                __bh1750_write_cmd(dev, BH1750_CMD_CON_H_RES_MODE);
                break;
        }
        break;

    case SR_LT_PREC_LOW:
        switch (dev->info[BH1750_RSRC_INDEX_FREQ]) {
            case SR_LT_FREQ_ONE:
                __bh1750_write_cmd(dev, BH1750_CMD_ONE_L_RES_MODE);
                break;
            case SR_LT_FREQ_CON:
                __bh1750_write_cmd(dev, BH1750_CMD_CON_L_RES_MODE);
                break;
        }
        break;
    }
}

/**
 * @brief stop periodic measurement
 *
 * @param[in] dev: device resource
 *
 * @return none
 */
STATIC VOID_T __bh1750_stop_periodic_measurement(IN CONST SR_RSRC_T *dev)
{
    __bh1750_write_cmd(dev, BH1750_CMD_ONE_L_RES_MODE);
}

/**
 * @brief set precision
 *
 * @param[inout] dev: device resource
 * @param[in] prec: precision level
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_set_precision(INOUT SR_RSRC_T *dev, IN CONST SR_LT_PREC_E *prec)
{
    if ((prec == NULL) || (*prec >= SR_LT_PREC_INVALID)) {
        return OPRT_INVALID_PARM;
    }

    dev->info[BH1750_RSRC_INDEX_PREC] = *prec;
    __bh1750_start_periodic_measurement(dev);

    return OPRT_OK;
}

/**
 * @brief set frequency
 *
 * @param[inout] dev: device resource
 * @param[in] freq: frequency
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_set_frequency(INOUT SR_RSRC_T *dev, IN CONST SR_LT_PREC_E *freq)
{
    if ((freq == NULL) || (*freq >= SR_LT_FREQ_INVALID)) {
        return OPRT_INVALID_PARM;
    }

    dev->info[BH1750_RSRC_INDEX_PREC] = *freq;
    __bh1750_start_periodic_measurement(dev);

    return OPRT_OK;
}

/**
 * @brief calculate light
 *
 * @param[in] light: light raw data from sensor
 * @param[out] light_val: light value in °C
 *
 * @return none
 */
STATIC VOID_T __bh1750_calc_light(IN CONST USHORT_T light, OUT SR_VAL_U *light_val,IN USHORT_T resl)
{
#if (SR_CONFIG_NO_FPU == 1)
    light_val->sr_int = light * resl / 2;
    TAL_PR_ERR("light_val->sr_int=%d",light_val->sr_int);
    // light_val->sr_int = light * 175 / 65535 - 45;
#else
    // light_val->sr_float = light * 175.0f / 65535.0f - 45.0f;
    light_val->sr_float = light * resl / 2.0F;
    TAL_PR_ERR("light_val->sr_float=%0.1f",light_val->sr_float);
#endif
}

/**
 * @brief read light and humidity from bh1750
 *
 * @param[in] dev: device resource
 * @param[out] light: light value
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_read_light(IN CONST SR_RSRC_T *dev, OUT USHORT_T *light)
{
    UCHAR_T buf[2] = {0};
    OPERATE_RET ret = OPRT_OK;

    TAL_PR_ERR("[BH1750] __bh1750_read_light");

    // reset
    __bh1750_write_cmd(dev, BH1750_CMD_SOFT_RESET);

    // set mode
    // __bh1750_write_cmd(dev, dev->info[BH1750_RSRC_INDEX_MODE]);
    // __bh1750_start_periodic_measurement(dev);
    __bh1750_write_cmd(dev, BH1750_CMD_ONE_H_RES_MODE);

    // delay -- wait value return
    __bh1750_delay_ms(180);

    ret = __bh1750_read_data(dev, 2, buf); 
    if(ret != OPRT_OK)
        return ret;

    *light = ((USHORT_T)buf[0] << 8) | buf[1];

    TAL_PR_ERR("[BH1750] buf = %0x %0x light= %d",buf[0],buf[1],*light);

    return OPRT_OK;
}

/**
 * @brief soft reset
 *
 * @param[in] dev: device resource
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_soft_reset(IN CONST SR_RSRC_T *dev)
{
    __bh1750_write_cmd(dev, BH1750_CMD_SOFT_RESET);
    __bh1750_delay_ms(50);
    return OPRT_OK;
}

// /**
//  * @brief read serial number
//  *
//  * @param[in] dev: device resource
//  * @param[out] serial_nbr: serial number
//  *
//  * @return OPRT_OK on success, others on error
//  */
// STATIC OPERATE_RET __bh1750_read_serial_number(IN CONST SR_RSRC_T *dev, OUT SR_LT_SERIAL_NBR_T *serial_nbr)
// {
//     UCHAR_T buf[6] = {0};
//     OPERATE_RET ret = OPRT_OK;

//     __bh1750_write_cmd(dev, BH1750_CMD_READ_SERIALNBR);
//     __bh1750_delay_ms(20);
//     ret = __bh1750_read_data(dev, 6, buf);
//     if(ret != OPRT_OK)
//         return ret;

//     if ((CRC_ERR == __bh1750_check_crc8(buf, 2, buf[2])) ||\
//         (CRC_ERR == __bh1750_check_crc8(buf+3, 2, buf[5]))) {
//         TAL_PR_ERR("[BH1750] The received serial number can't pass the CRC8 check.");
//         return OPRT_CRC32_FAILED;
//     }

//     serial_nbr->val = ((UINT_T)buf[0] << 24) | ((UINT_T)buf[1] << 16) |\
//                       ((UINT_T)buf[3] <<  8) | ((UINT_T)buf[4]);
//     return OPRT_OK;
// }

/**
 * @brief open bh1750 device
 *
 * @param[inout] dev: device resource
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __tdd_sensor_bh1750_open(INOUT SR_RSRC_T *dev)
{
    __bh1750_write_cmd(dev, BH1750_CMD_POWER_ON);   // power on
    // __bh1750_start_periodic_measurement(dev);
    dev->info[BH1750_RSRC_INDEX_STAT] = BH1750_OPEN;
    return OPRT_OK;
}

/**
 * @brief close bh1750 device
 *
 * @param[inout] dev: device resource
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __tdd_sensor_bh1750_close(INOUT SR_RSRC_T *dev)
{
    // __bh1750_stop_periodic_measurement(dev);
    __bh1750_write_cmd(dev, BH1750_CMD_POWER_DOWN);   // power down
    dev->info[BH1750_RSRC_INDEX_STAT] = BH1750_CLOSE;
    return OPRT_OK;
}

/**
 * @brief control bh1750 device
 *
 * @param[inout] dev: device resource
 * @param[in] cmd: control command
 * @param[inout] param: command parameter, data type depends on the specified command
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __tdd_sensor_bh1750_control(INOUT SR_RSRC_T* dev, IN UCHAR_T cmd, INOUT VOID_T *param)
{
    OPERATE_RET op_ret = OPRT_OK;

    if ((BH1750_OPEN == dev->info[BH1750_RSRC_INDEX_STAT]) &&\
        (cmd == SR_LT_CMD_SET_PREC      ||\
         cmd == SR_LT_CMD_SET_FREQ      ||\
         cmd == SR_LT_CMD_SOFT_RESET )) {
        TAL_PR_ERR("[BH1750] Command <%d> is only supported when acquisition is closed.");
        return OPRT_COM_ERROR;
    }

    switch (cmd) {
    case SR_LT_CMD_SOFT_RESET:
        op_ret = __bh1750_soft_reset(dev);
        break;

    // case SR_LT_CMD_GET_SERIAL_NBR:
    //     op_ret = __bh1750_read_serial_number(dev, (SR_LT_SERIAL_NBR_T *)param);
    //     break;
        
    case SR_LT_CMD_SET_PREC:
        op_ret = __bh1750_set_precision(dev, (SR_LT_PREC_E *)param);
        break;

    case SR_LT_CMD_SET_FREQ:
        op_ret = __bh1750_set_frequency(dev, (SR_LT_FREQ_E *)param);
        break;

    // case SR_LT_CMD_SET_ALT_LIMIT:
    //     op_ret = __bh1750_set_alert_limit(dev, (SR_LT_LIMIT_T *)param);
    //     break;

    // case SR_LT_CMD_GET_ALT_LIMIT:
    //     op_ret = __bh1750_get_alert_limit(dev, (SR_LT_LIMIT_T *)param);
    //     break;

    // case SR_LT_CMD_ENABLE_ALT_PIN:
    //     op_ret = __bh1750_enable_alert(dev, (SR_LT_ALT_CFG_T *)param);
    //     break;

    // case SR_LT_CMD_DISABLE_ALT_PIN:
    //     op_ret = __bh1750_disable_alert(dev, (TUYA_GPIO_NUM_E *)param);
    //     break;

    // case SR_LT_CMD_GET_STATUS:
    //     op_ret = __bh1750_read_status(dev, (SR_LT_STATUS_U *)param);
    //     break;

    // case SR_LT_CMD_CLR_STATUS:
    //     op_ret = __bh1750_clear_status(dev);
    //     break;

    // case SR_LT_CMD_ENABLE_HEATER:
    //     op_ret = __bh1750_set_heater(dev, TRUE);
    //     break;

    // case SR_LT_CMD_DISABLE_HEATER:
    //     op_ret = __bh1750_set_heater(dev, FALSE);
    //     break;

    default:
        op_ret = OPRT_INVALID_PARM;
        TAL_PR_ERR("[BH1750] Command <%d> is invalid.", cmd);
        break;
    }

    return op_ret;
}

/**
 * @brief read data from bh1750 device
 *
 * @param[in] dev: device
 * @param[out] ele_data: element data
 * @param[in] ele_num: number of elements
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __tdd_sensor_bh1750_read(IN SR_RSRC_T* dev, OUT SR_ELE_DATA_T *ele_data, IN UCHAR_T ele_num)
{
    USHORT_T light = 0;

    TAL_PR_ERR("[BH1750] __tdd_sensor_bh1750_read");

    OPERATE_RET op_ret = __bh1750_read_light(dev, &light);
    if (op_ret != OPRT_OK) {
        return op_ret;
    }

    for (UCHAR_T i = 0; i < ele_num; i++) {
        switch (ele_data[i].id) {
        case SR_LT_ELE_ID_LIGHT:
            TAL_PR_ERR("[BH1750] get value. resl=%d",dev->info[BH1750_RSRC_INDEX_RESL]);
            __bh1750_calc_light(light, &ele_data[i].val, (USHORT_T)dev->info[BH1750_RSRC_INDEX_RESL]);
            // ele_data[i].val = ele_data[i].val * (SR_VAL_U)(dev->info[BH1750_RSRC_INDEX_RESL]);
            break;
            
        default:
            TAL_PR_ERR("[BH1750] Element ID: %d is invalid.", ele_data[i].id);
            break;
        }
    }
    return OPRT_OK;
}

/**
 * @brief register bh1750 device
 *
 * @param[in] name: device name
 * @param[in] i2c_cfg: i2c configuration
 * @param[in] meas_cfg: measurement configuration
 *
 * @return OPRT_OK on success, others on error
 */
OPERATE_RET tdd_sensor_bh1750_register(IN CHAR_T *name, IN SR_LT_I2C_CFG_T i2c_cfg, IN SR_LT_MEAS_CFG_T meas_cfg)
{
    // check param
    if (i2c_cfg.gpio.scl == i2c_cfg.gpio.sda) {
        return OPRT_INVALID_PARM;
    }

    // I2C init
    tdd_sensor_i2c_init(i2c_cfg.port, i2c_cfg.gpio);

    // save resourse information
    SR_RSRC_T resource = {0};
    resource.port = i2c_cfg.port;
    resource.handle = NULL;
    resource.info[BH1750_RSRC_INDEX_STAT] = BH1750_CLOSE;
    resource.info[BH1750_RSRC_INDEX_ADDR] = i2c_cfg.addr;
    resource.info[BH1750_RSRC_INDEX_PREC] = meas_cfg.prec;
    resource.info[BH1750_RSRC_INDEX_FREQ] = meas_cfg.freq;

    switch (meas_cfg.prec) {
        case SR_LT_PREC_HIGH: 
            resource.info[BH1750_RSRC_INDEX_RESL] = 2;//1
            break;
        case SR_LT_PREC_MEDIUM:
            resource.info[BH1750_RSRC_INDEX_RESL] = 1;//0.5
            break;
        case SR_LT_PREC_LOW:
            resource.info[BH1750_RSRC_INDEX_RESL] = 82;//41
            break;
        default:
            resource.info[BH1750_RSRC_INDEX_RESL] = 1;//2
            break;
    }
    

    // define driver interfaces
    STATIC SR_INTFS_T s_intfs;
    s_intfs.open = __tdd_sensor_bh1750_open;
    s_intfs.close = __tdd_sensor_bh1750_close;
    s_intfs.control = __tdd_sensor_bh1750_control;
    s_intfs.read_ele = __tdd_sensor_bh1750_read;

    // register the device
    OPERATE_RET op_ret = tdl_sensor_register(name, &s_intfs, SR_LT_ELE_NUM, sg_ele_val_tp, &resource);
    if (OPRT_OK != op_ret) {
        return op_ret;
    }

    return OPRT_OK;
}

app_light.c

c 复制代码
/**
 * @file app_light.c
 * @brief RH-T sensor application demo
 * @version 0.1
 * @date 2022-09-07
 */

#include "app_light.h"
#include "tdl_sensor_hub.h"
#include "tdd_sensor_light.h"
#include "tkl_memory.h"
#include "tal_sw_timer.h"
#include "tal_log.h"
#include "tuya_iot_com_api.h"
#include "tuya_wifi_status.h"
#include "tuya_ws_db.h"

/***********************************************************
************************macro define************************
***********************************************************/

/**
 * @brief alert code
 */
#define ALT_LOWER       0
#define ALT_UPPER       1
#define ALT_CANCEL      2

/***********************************************************
***********************typedef define***********************
***********************************************************/
/**
 * @brief DP data typedef
 */
typedef struct {
    TY_OBJ_DP_VALUE_U light;
    TY_OBJ_DP_VALUE_U light_alert;
} LT_DP_DATA_T;

/**
 * @brief flag typedef
 */
typedef struct {
    UCHAR_T turn_on         : 1;
    UCHAR_T light_change    : 1;
    UCHAR_T alert           : 1;
    UCHAR_T reserved        : 4;
} LT_FLAG_T;

/***********************************************************
********************function declaration********************
***********************************************************/

/***********************************************************
***********************variable define**********************
***********************************************************/
/**
 * @brief bh1750 process
 */
STATIC SENSOR_HANDLE_T sg_bh1750_handle = NULL;
STATIC SR_LT_STATUS_U sg_bh1750_status;
STATIC SR_LT_LIMIT_T sg_bh1750_alert_limit;
STATIC LT_FLAG_T sg_bh1750_flag;
STATIC TIMER_ID sg_bh1750_report_timer;

/**
 * @brief DP process
 */
STATIC LT_DP_DATA_T sg_lt_dp_data;

/***********************************************************
***********************function define**********************
***********************************************************/
/**
 * @brief report one dp data
 *
 * @param[in] dp_id: DP ID
 * @param[in] dp_type: DP type
 * @param[in] dp_value: DP value
 *
 * @return none
 */
STATIC VOID_T __repo_one_dp_data(CONST UCHAR_T dp_id, CONST UCHAR_T dp_type, CONST TY_OBJ_DP_VALUE_U dp_value)
{
    GW_WIFI_NW_STAT_E wifi_stat = STAT_LOW_POWER;
    get_wf_gw_nw_status(&wifi_stat);
    if (wifi_stat <= STAT_AP_STA_DISC || wifi_stat == STAT_STA_DISC) {
        return;
    }

    TY_OBJ_DP_S dp_repo;

    dp_repo.dpid = dp_id;
    dp_repo.type = dp_type;
    dp_repo.time_stamp = 0;

    switch (dp_type) {
    case PROP_BOOL:
        dp_repo.value.dp_bool = dp_value.dp_bool;
        break;

    case PROP_VALUE:
        dp_repo.value.dp_value = dp_value.dp_value;
        break;

    case PROP_ENUM:
        dp_repo.value.dp_enum = dp_value.dp_enum;
        break;

    case PROP_STR:
        dp_repo.value.dp_str = dp_value.dp_str;
        break;

    case PROP_BITMAP:
        dp_repo.value.dp_bitmap = dp_value.dp_bitmap;
        break;

    default:
        break;
    }

    TAL_PR_INFO("repo_one_dp_data ID:%d", dp_repo.dpid);
    OPERATE_RET op_ret = dev_report_dp_json_async(NULL, &dp_repo, 1);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("__repo_one_dp_data -- dev_report_dp_json_async, error code: %d.", op_ret);
    }
}


/**
 * @brief data ready inform
 *
 * @param[in] name: device name
 * @param[in] ele_num: number of elements
 * @param[in] ele_data: element data
 *
 * @return none
 */
STATIC VOID_T __bh1750_inform_cb(CHAR_T* name, UCHAR_T ele_num, SR_ELE_BUFF_T *ele_data)
{
    INT_T light;

    for (UCHAR_T i = 0; i < ele_num; i++) {
        if (ele_data[i].id == SR_LT_ELE_ID_LIGHT) {
            light = (INT_T)(ele_data[i].val[0].sr_float * LIGHT_SCALE);
            
            TAL_PR_INFO("Light: %d sg_lt_dp_data.light.dp_value: %d", light, sg_lt_dp_data.light.dp_value);
            if (light != sg_lt_dp_data.light.dp_value) {
                if ((light > (sg_lt_dp_data.light.dp_value + APP_LIGHT_REPORT_INTERVAL)) || \
                    ((light + APP_LIGHT_REPORT_INTERVAL) < sg_lt_dp_data.light.dp_value)) {

                    sg_lt_dp_data.light.dp_value = light;
                    sg_bh1750_flag.light_change = TRUE;
                    TAL_PR_INFO("Light change. Enable report");
                }

            }
        } 
    }
}

/**
 * @brief bh1750 alert callback
 *
 * @param none
 *
 * @return none
 */
STATIC VOID_T __bh1750_alert_cb(VOID_T *args)
{
    sg_bh1750_flag.alert = TRUE;
}

/**
 * @brief bh1750 register
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_register(VOID_T)
{
    OPERATE_RET op_ret;

    TAL_PR_DEBUG("Youkai __bh1750_register");

    SR_I2C_GPIO_T i2c_gpio = {
        .scl = BH1750_SCL_PIN,
        .sda = BH1750_SDA_PIN
    };
    SR_LT_I2C_CFG_T bh1750_i2c_cfg = {
        .port = 0,
        .addr = SR_I2C_ADDR_BH1750_A,   // GND
        .gpio = i2c_gpio
    };

    SR_LT_MEAS_CFG_T bh1750_meas_cfg = {
        .prec = SR_LT_PREC_HIGH,
        .freq = SR_LT_FREQ_CON,
        // .mode = BH1750_CMD_CON_H_RES_MODE
    };

    op_ret = tdd_sensor_bh1750_register("BH1750", bh1750_i2c_cfg, bh1750_meas_cfg);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("tdd_sensor_bh1750_register, error code: %d.", op_ret);
        return op_ret;
    }

    op_ret = tdl_sensor_dev_find("BH1750", &sg_bh1750_handle);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("tdl_sensor_dev_find, error code: %d.", op_ret);
        return op_ret;
    }

    return OPRT_OK;
}

/**
 * @brief clear status
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_clear_status(VOID_T)
{
    OPERATE_RET op_ret;

    op_ret = tdl_sensor_dev_config(sg_bh1750_handle, SR_LT_CMD_CLR_STATUS, NULL);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("SR_LT_CMD_CLR_STATUS, error code: %d.", op_ret);
        return op_ret;
    }

    op_ret = tdl_sensor_dev_config(sg_bh1750_handle, SR_LT_CMD_GET_STATUS, &sg_bh1750_status);
    if (op_ret != OPRT_OK) {
        TAL_PR_ERR("SR_LT_CMD_GET_STATUS, error code: %d.", op_ret);
        return op_ret;
    }

    TAL_PR_DEBUG("Status <alert pending>: %d.", sg_bh1750_status.bit.alert_pending);
    TAL_PR_DEBUG("Status <light alert>: %d.", sg_bh1750_status.bit.light_alert);

    return OPRT_OK;
}


/**
 * @brief bh1750 set alert
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_set_alert(VOID_T)
{
    OPERATE_RET op_ret;

    // set alert limit
    sg_bh1750_alert_limit.light_high_set.sr_float = 125.0f;
    sg_bh1750_alert_limit.light_high_clear.sr_float = sg_bh1750_alert_limit.light_high_set.sr_float - 5.0f;
    sg_bh1750_alert_limit.light_low_set.sr_float = -40.0f;
    sg_bh1750_alert_limit.light_low_clear.sr_float = sg_bh1750_alert_limit.light_low_set.sr_float + 5.0f;

    op_ret = tdl_sensor_dev_config(sg_bh1750_handle, SR_LT_CMD_SET_ALT_LIMIT, &sg_bh1750_alert_limit);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("SR_LT_CMD_SET_ALT_LIMIT, error code: %d.", op_ret);
        return op_ret;
    }

    // clear alert status
    op_ret = __bh1750_clear_status();
    if (op_ret != OPRT_OK) {
        return op_ret;
    }

    // enable alert function
    SR_LT_ALT_CFG_T bh1750_alert_cfg;
    bh1750_alert_cfg.pin = BH1750_ALT_PIN;
    bh1750_alert_cfg.irq.mode = TUYA_GPIO_IRQ_RISE;
    bh1750_alert_cfg.irq.cb = __bh1750_alert_cb;
    bh1750_alert_cfg.irq.arg = NULL;

    op_ret = tdl_sensor_dev_config(sg_bh1750_handle, SR_LT_CMD_ENABLE_ALT_PIN, &bh1750_alert_cfg);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("SR_LT_CMD_ENABLE_ALT_PIN, error code: %d.", op_ret);
        return op_ret;
    }

    return OPRT_OK;
}

/**
 * @brief bh1750 open
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_open(VOID_T)
{
    TAL_PR_DEBUG("Youkai __bh1750_open");

    if (sg_bh1750_flag.turn_on) {
        TAL_PR_ERR("The device is already turned on.");
        return OPRT_COM_ERROR;
    }

    OPERATE_RET op_ret;
    SR_DEV_CFG_T bh1750_cfg;
    tkl_system_memset(&bh1750_cfg, 0, SIZEOF(SR_DEV_CFG_T));

    bh1750_cfg.mode.trig_mode = SR_MODE_POLL_SOFT_TM;
    bh1750_cfg.mode.poll_intv_ms = APP_LIGHT_READ_CYCLE;
    bh1750_cfg.inform_cb.ele = __bh1750_inform_cb;
    bh1750_cfg.fifo_size = 1;
    bh1750_cfg.ele_sub = NULL;

    op_ret = tdl_sensor_dev_open(sg_bh1750_handle, &bh1750_cfg);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("tdl_sensor_dev_open, error code: %d.", op_ret);
        return op_ret;
    }

    sg_bh1750_flag.turn_on = TRUE;
    TAL_PR_INFO("Open device successfully.");

    return OPRT_OK;
}

/**
 * @brief bh1750 close
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_close(VOID_T)
{
    if (!sg_bh1750_flag.turn_on) {
        TAL_PR_ERR("The device is already turned off.");
        return OPRT_COM_ERROR;
    }

    OPERATE_RET op_ret = tdl_sensor_dev_close(sg_bh1750_handle);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("tdl_sensor_dev_close, error code: %d.", op_ret);
        return op_ret;
    }

    sg_bh1750_flag.turn_on = FALSE;
    TAL_PR_INFO("Close device successfully.");

    return OPRT_OK;
}

/**
 * @brief get alert code
 *
 * @param[in] cur_val: current value
 * @param[in] high_lim: high set limit
 * @param[in] low_lim: low set limit
 *
 * @return alert code
 */
STATIC UINT_T __get_alert_code(CONST FLOAT_T cur_val, CONST FLOAT_T high_lim, CONST FLOAT_T low_lim)
{
    UINT_T code;
    FLOAT_T diff_abs_h, diff_abs_l;

    if (cur_val >= high_lim) {
        diff_abs_h = cur_val - high_lim;
    } else {
        diff_abs_h = high_lim - cur_val;
    }
    if (cur_val >= low_lim) {
        diff_abs_l = cur_val - low_lim;
    } else {
        diff_abs_l = low_lim - cur_val;
    }

    if (diff_abs_h < diff_abs_l) {
        code = ALT_UPPER;
    } else {
        code = ALT_LOWER;
    }
    
    return code;
}


/**
 * @brief bh1750 alert occur handler
 *
 * @param none
 *
 * @return none
 */
STATIC VOID_T __bh1750_alert_occur_handler(VOID_T)
{
    OPERATE_RET op_ret = tdl_sensor_dev_config(sg_bh1750_handle, SR_LT_CMD_GET_STATUS, &sg_bh1750_status);
    if (op_ret != OPRT_OK) {
        TAL_PR_ERR("SR_LT_CMD_GET_STATUS, error code: %d.", op_ret);
        return;
    }

    FLOAT_T cur_val;

    if (sg_bh1750_status.bit.light_alert) {
        if (ALT_CANCEL == sg_lt_dp_data.light_alert.dp_enum) {
            TAL_PR_INFO("Light alert occurred.");
            cur_val = sg_lt_dp_data.light.dp_value / (10.0f * LIGHT_SCALE);
            sg_lt_dp_data.light_alert.dp_enum = __get_alert_code(cur_val,\
                                                                sg_bh1750_alert_limit.light_high_set.sr_float,\
                                                                sg_bh1750_alert_limit.light_low_set.sr_float);
            __repo_one_dp_data(DP_ID_LIGHT_ALT, PROP_ENUM, sg_lt_dp_data.light_alert);
        }
    } else {
        if (sg_lt_dp_data.light_alert.dp_enum != ALT_CANCEL) {
            TAL_PR_INFO("Light alert canceled.");
            sg_lt_dp_data.light_alert.dp_enum = ALT_CANCEL;
            __repo_one_dp_data(DP_ID_LIGHT_ALT, PROP_ENUM, sg_lt_dp_data.light_alert);
        }
    }

    if (!sg_bh1750_status.bit.light_alert) {
        sg_bh1750_flag.alert = FALSE;
    }
}

/**
 * @brief bh1750 report timer callback
 *
 * @param[in] timer_id: timer ID
 * @param[in] arg: argument
 *
 * @return none
 */
STATIC VOID_T __bh1750_report_timer_cb(TIMER_ID timer_id, VOID_T *arg)
{
    // if (sg_bh1750_flag.alert) {
    //     __bh1750_alert_occur_handler();
    // }



    if (sg_bh1750_flag.light_change) {
        TAL_PR_INFO("light change report.");
        sg_bh1750_flag.light_change = FALSE;
        __repo_one_dp_data(DP_ID_LIGHT, PROP_VALUE, sg_lt_dp_data.light);
    }

}

/**
 * @brief light main
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
OPERATE_RET app_light_init(VOID_T)
{
    OPERATE_RET op_ret;
    BOOL_T is_exist = FALSE;

    tkl_system_memset(&sg_bh1750_flag, 0, SIZEOF(LT_FLAG_T));

    TAL_PR_ERR("app_light_init");

    sg_lt_dp_data.light.dp_value = 0;
    sg_lt_dp_data.light_alert.dp_enum = ALT_CANCEL;
    sg_bh1750_status.word = 0;

    op_ret = __bh1750_register();
    if (OPRT_OK != op_ret) {
        return op_ret;
    }

    // op_ret = __bh1750_set_alert();
    // if (OPRT_OK != op_ret) {
    //     return op_ret;
    // }

    op_ret = __bh1750_open();
    if (OPRT_OK != op_ret) {
        return op_ret;
    }

    op_ret = tal_sw_timer_create(__bh1750_report_timer_cb, NULL, &sg_bh1750_report_timer);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("tal_sw_timer_create -- sg_bh1750_report_timer, error code: %d.", op_ret);
        return op_ret;
    } else {
        tal_sw_timer_start(sg_bh1750_report_timer, APP_LIGHT_REPORT_CYCLE, TAL_TIMER_CYCLE);
    }


    //read alert limit data
    // wd_common_exist(KEY_NAME, &is_exist);
    // if (TRUE == is_exist) {
    //     BYTE_T  *read_buf = NULL;
    //     UINT_T read_len;
    //     op_ret = wd_common_read(KEY_NAME, &read_buf, &read_len);
    //     if (OPRT_OK != op_ret) {
    //         TAL_PR_ERR("wd_common_read %s error code: %d,", KEY_NAME, op_ret);
    //         return op_ret;
    //     }

    //     SR_LT_LIMIT_T *data = (SR_LT_LIMIT_T *)read_buf;
    //     sg_bh1750_alert_limit.light_high_set.sr_float = data->light_high_set.sr_float;
    //     sg_bh1750_alert_limit.light_low_set.sr_float = data->light_low_set.sr_float;

    //     if (NULL != read_buf) {
    //         wd_common_free_data(read_buf);
    //         read_buf = NULL;
    //     }
    // } else {
    //     //set default value
    //     sg_bh1750_alert_limit.light_high_set.sr_float = 125.0f;
    //     sg_bh1750_alert_limit.light_low_set.sr_float = -40.0f;
    //     op_ret = wd_common_write(KEY_NAME, (BYTE_T *)&sg_bh1750_alert_limit, sizeof(sg_bh1750_alert_limit));
    //     if (OPRT_OK != op_ret) {
    //         TAL_PR_ERR("wd_common_write %s error code: %d,", KEY_NAME, op_ret);

    //         return op_ret;
    //     }
    // }

    return OPRT_OK;
}

/**
 * @brief bh1750 set alert by cloud
 *
 * @param none
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __bh1750_set_alert_by_cloud(VOID_T)
{
    OPERATE_RET op_ret;

    sg_bh1750_alert_limit.light_high_clear.sr_float = sg_bh1750_alert_limit.light_high_set.sr_float;
    sg_bh1750_alert_limit.light_low_clear.sr_float = sg_bh1750_alert_limit.light_low_set.sr_float;

    op_ret = wd_common_write(KEY_NAME, (BYTE_T *)&sg_bh1750_alert_limit, sizeof(sg_bh1750_alert_limit));
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("wd_common_write %s error code: %d,", KEY_NAME, op_ret);

        return op_ret;
    }

    op_ret = tdl_sensor_dev_config(sg_bh1750_handle, SR_LT_CMD_SET_ALT_LIMIT, &sg_bh1750_alert_limit);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("SR_LT_CMD_SET_ALT_LIMIT, error code: %d.", op_ret);
        return op_ret;
    }

    op_ret = __bh1750_clear_status();
    if (OPRT_OK != op_ret) {
        return op_ret;
    }

    return OPRT_OK;
}

/**
 * @brief switch device
 *
 * @param[in] enabled: TRUE on enabled, FALSE on disabled
 *
 * @return OPRT_OK on success, others on error
 */
STATIC OPERATE_RET __switch_dev_by_cloud(CONST BOOL_T enabled)
{
    OPERATE_RET op_ret;
    if (enabled) {
        op_ret = __bh1750_open();
    } else {
        op_ret = __bh1750_close();
    }
    return op_ret;
}

/**
 * @brief DP processing
 *
 * @param[in] dp: dp data
 *
 * @return none
 */
VOID_T app_light_dp_proc(CONST TY_OBJ_DP_S *dp)
{
    OPERATE_RET op_ret;

    switch (dp->dpid) {
    case DP_ID_LIGHT_MAX:
        sg_bh1750_alert_limit.light_high_set.sr_float = dp->value.dp_value / (10.0f * LIGHT_SCALE);
        TAL_PR_INFO("[APP] Set the maximum lighterature to %.1f.", sg_bh1750_alert_limit.light_high_set.sr_float);
        op_ret = __bh1750_set_alert_by_cloud();
        break;

    case DP_ID_LIGHT_MIN:
        sg_bh1750_alert_limit.light_low_set.sr_float = dp->value.dp_value / (10.0f * LIGHT_SCALE);
        TAL_PR_INFO("[APP] Set the minimum lighterature to %.1f.", sg_bh1750_alert_limit.light_low_set.sr_float);
        op_ret = __bh1750_set_alert_by_cloud();
        break;

    case DP_ID_SWITCH:
        TAL_PR_INFO("[APP] Switch device: %d.", dp->value.dp_bool);
        op_ret = __switch_dev_by_cloud(dp->value.dp_bool);
        break;

    default:
        op_ret = OPRT_INVALID_PARM;
        break;
    }

    if (OPRT_OK == op_ret) {
        op_ret = dev_report_dp_json_async(NULL, dp, 1);
        if (OPRT_OK != op_ret) {
            TAL_PR_ERR("app_light_dp_proc -- dev_report_dp_json_async, error code: %d.", op_ret);
        }
    }

    TAL_PR_INFO("app_light_dp_proc: %d", op_ret);
}

/**
 * @brief report all DP data
 *
 * @param none
 *
 * @return none
 */
VOID_T app_light_repo_all_dp(VOID_T)
{
    GW_WIFI_NW_STAT_E wifi_stat = STAT_LOW_POWER;
    get_wf_gw_nw_status(&wifi_stat);
    if (wifi_stat <= STAT_AP_STA_DISC || wifi_stat == STAT_STA_DISC) {
        return;
    }

    TY_OBJ_DP_S *dp_arr = (TY_OBJ_DP_S *)tkl_system_malloc(MAX_DP_NUM*SIZEOF(TY_OBJ_DP_S));
    if (NULL == dp_arr) {
        TAL_PR_ERR("dp_arr malloc failed.");
        return;
    }

    tkl_system_memset(dp_arr, 0, MAX_DP_NUM*SIZEOF(TY_OBJ_DP_S));

    dp_arr[0].dpid = DP_ID_LIGHT;
    dp_arr[0].type = PROP_VALUE;
    dp_arr[0].time_stamp = 0;
    dp_arr[0].value.dp_value = sg_lt_dp_data.light.dp_value;

    dp_arr[2].dpid = DP_ID_LIGHT_MAX;
    dp_arr[2].type = PROP_VALUE;
    dp_arr[2].time_stamp = 0;
    dp_arr[2].value.dp_value = (INT_T)(sg_bh1750_alert_limit.light_high_set.sr_float * (10 * LIGHT_SCALE));

    dp_arr[3].dpid = DP_ID_LIGHT_MIN;
    dp_arr[3].type = PROP_VALUE;
    dp_arr[3].time_stamp = 0;
    dp_arr[3].value.dp_value = (INT_T)(sg_bh1750_alert_limit.light_low_set.sr_float * (10 * LIGHT_SCALE));

    dp_arr[6].dpid = DP_ID_LIGHT_ALT;
    dp_arr[6].type = PROP_ENUM;
    dp_arr[6].time_stamp = 0;
    dp_arr[6].value.dp_enum = sg_lt_dp_data.light_alert.dp_enum;

    dp_arr[8].dpid = DP_ID_SWITCH;
    dp_arr[8].type = PROP_BOOL;
    dp_arr[8].time_stamp = 0;
    dp_arr[8].value.dp_bool = sg_bh1750_flag.turn_on;


    OPERATE_RET op_ret = dev_report_dp_json_async(NULL, dp_arr, MAX_DP_NUM);
    if (OPRT_OK != op_ret) {
        TAL_PR_ERR("app_light_repo_all_dp -- dev_report_dp_json_async, error code: %d.", op_ret);
    } else {
        TAL_PR_INFO("app_light_repo_all_dp: %d", op_ret);
    }
    tkl_system_free(dp_arr);
    dp_arr = NULL;
}

tuya_app_main.c

c 复制代码
/**
 * @file tuya_app_main.c
 * @author www.tuya.com
 * @brief tuya_app_main module is used to 
 * @version 0.1
 * @date 2022-10-28
 *
 * @copyright Copyright (c) tuya.inc 2022
 *
 */

#include "tuya_cloud_types.h"
#include "tuya_iot_wifi_api.h"
#include "tuya_ws_db.h"
#include "gw_intf.h"
#include "tal_log.h"
#include "tal_wifi.h"
#include "tal_uart.h"
#include "mf_test.h"
#if defined(ENABLE_LWIP) && (ENABLE_LWIP == 1)
#include "lwip_init.h"
#endif

#include "app_led.h"
#include "app_key.h"

#include "app_light.h"

/***********************************************************
************************macro define************************
***********************************************************/


/* The registration code here does not work, you need to apply for a new one.
 * https://developer.tuya.com/cn/docs/iot/lisence-management?id=Kb4qlem97idl0
 */
// #define UUID     "f998xxxxxxxx2409"
// #define AUTHKEY  "WEHAxxxxxxxxxxxxxxxxxxxxxxxxVVkf"

/* network button, LED pin */
#define KEY_PIN 7
#define LED_PIN 26

/* Compatible with TuyaOS 3.3.x */
#ifndef TUYA_UART_NUM_0
#define TUYA_UART_NUM_0 UART_NUM_0
#endif

/***********************************************************
***********************typedef define***********************
***********************************************************/


/***********************************************************
********************function declaration********************
***********************************************************/


/***********************************************************
***********************variable define**********************
***********************************************************/
/* app thread handle */
STATIC THREAD_HANDLE ty_app_thread = NULL;

/***********************************************************
***********************function define**********************
***********************************************************/

/**
 * @brief SOC device upgrade entry
 *
 * @param[in] fw: firmware info
 *
 * @return OPRT_OK on success. Others on error, please refer to "tuya_error_code.h".
 */
STATIC OPERATE_RET __soc_dev_rev_upgrade_info_cb(IN CONST FW_UG_S *fw)
{
    TAL_PR_DEBUG("SOC Rev Upgrade Info");
    TAL_PR_DEBUG("fw->tp:%d", fw->tp);
    TAL_PR_DEBUG("fw->fw_url:%s", fw->fw_url);
    TAL_PR_DEBUG("fw->fw_hmac:%s", fw->fw_hmac);
    TAL_PR_DEBUG("fw->sw_ver:%s", fw->sw_ver);
    TAL_PR_DEBUG("fw->file_size:%u", fw->file_size);

    return OPRT_OK;
}

/**
 * @brief SOC device cloud state change callback
 *
 * @param[in] status: current status
 *
 * @return none
 */
STATIC VOID_T __soc_dev_status_changed_cb(IN CONST GW_STATUS_E status)
{
    TAL_PR_DEBUG("SOC TUYA-Cloud Status:%d", status);
    return;
}

/**
 * @brief SOC device DP query entry
 *
 * @param[in] dp_qry: DP query list
 *
 * @return none
 */
STATIC VOID_T __soc_dev_dp_query_cb(IN CONST TY_DP_QUERY_S *dp_qry)
{
    UINT32_T index = 0;

    TAL_PR_DEBUG("SOC Rev DP Query Cmd");
    if (dp_qry->cid != NULL) {
        TAL_PR_ERR("soc not have cid.%s", dp_qry->cid);
    }

    if (dp_qry->cnt == 0) {
        TAL_PR_DEBUG("soc rev all dp query");
        app_light_repo_all_dp();
    } else {
        TAL_PR_DEBUG("soc rev dp query cnt:%d", dp_qry->cnt);
        for (index = 0; index < dp_qry->cnt; index++) {
            TAL_PR_DEBUG("rev dp query:%d", dp_qry->dpid[index]);
            
        }
    }

    return;
}

/**
 * @brief SOC device format command data delivery entry
 *
 * @param[in] dp: obj dp info
 *
 * @return none
 */
STATIC VOID_T __soc_dev_obj_dp_cmd_cb(IN CONST TY_RECV_OBJ_DP_S *dp)
{
    UINT32_T index = 0;

    TAL_PR_DEBUG("SOC Rev DP Obj Cmd t1:%d t2:%d CNT:%u", dp->cmd_tp, dp->dtt_tp, dp->dps_cnt);
    if (dp->cid != NULL) {
        TAL_PR_ERR("soc not have cid.%s", dp->cid);
    }

    for (index = 0; index < dp->dps_cnt; index++) {
        app_light_dp_proc(&(dp->dps[index]));
    }

    return;
}

/**
 * @brief SOC device transparently transmits command data delivery entry
 *
 * @param[in] dp: raw dp info
 *
 * @return none
 */
STATIC VOID_T __soc_dev_raw_dp_cmd_cb(IN CONST TY_RECV_RAW_DP_S *dp)
{
    TAL_PR_DEBUG("SOC Rev DP Raw Cmd t1:%d t2:%d dpid:%d len:%u", dp->cmd_tp, dp->dtt_tp, dp->dpid, dp->len);
    if (dp->cid != NULL) {
        TAL_PR_ERR("soc not have cid.%s", dp->cid);
    }

    return;
}

/**
 * @brief SOC device process restart request entry
 *
 * @param[in] type: gateway reset type
 *
 * @return none
 */
STATIC VOID_T __soc_dev_restart_req_cb(GW_RESET_TYPE_E type)
{
    TAL_PR_DEBUG("SOC Rev Restart Req %d", type);
    if (GW_RESET_DATA_FACTORY != type) {
        // UserTODO Device process restart
        tal_system_reset();
    }

    return;
}

/**
 * @brief SOC external network status change callback
 *
 * @param[in] stat: curr network status
 *
 * @return none
 */
STATIC VOID __soc_dev_net_status_cb(IN CONST GW_WIFI_NW_STAT_E stat)
{
    TAL_PR_DEBUG("network status:%d", stat);

    STATIC BOOL_T proc_flag = FALSE;
    if ((FALSE == proc_flag) &&\
        (STAT_AP_STA_CONN == stat || STAT_STA_CONN <= stat)) {
        app_light_repo_all_dp();
        TAL_PR_INFO("WF");
        proc_flag = TRUE;
    }

    if ((TRUE == proc_flag) &&\
        (STAT_AP_STA_DISC == stat || STAT_STA_DISC == stat)) {
        proc_flag = FALSE;
    }

    return;
}

/**
 * @brief mf uart init
 *
 * @param[in] baud: Baud rate
 * @param[in] bufsz: uart receive buffer size
 *
 * @return none
 */
VOID mf_uart_init_callback(UINT_T baud, UINT_T bufsz)
{
    TAL_UART_CFG_T cfg;
    memset(&cfg, 0, sizeof(TAL_UART_CFG_T));
    cfg.base_cfg.baudrate = baud;
    cfg.base_cfg.databits = TUYA_UART_DATA_LEN_8BIT;
    cfg.base_cfg.parity = TUYA_UART_PARITY_TYPE_NONE;
    cfg.base_cfg.stopbits = TUYA_UART_STOP_LEN_1BIT;
    cfg.rx_buffer_size = bufsz;

    tal_uart_init(TUYA_UART_NUM_0, &cfg);

    return;
}

/**
 * @brief mf uart free
 *
 * @param[in] none
 *
 * @return none
 */
VOID mf_uart_free_callback(VOID)
{
    tal_uart_deinit(TUYA_UART_NUM_0);
    return;
}

/**
 * @brief mf uart send function
 *
 * @param[in] data: send data
 * @param[in] len: send data length
 * 
 * @return none
 */
VOID mf_uart_send_callback(IN BYTE_T *data, IN CONST UINT_T len)
{
    tal_uart_write(TUYA_UART_NUM_0, data, len);
    return;
}

/**
 * @brief mf uart receive function
 *
 * @param[in] buf: receive buffer
 * @param[in] len: receive buffer max length
 *
 * @return receive data length
 */
UINT_T mf_uart_recv_callback(OUT BYTE_T *buf, IN CONST UINT_T len)
{
    return tal_uart_read(TUYA_UART_NUM_0, buf, len);
}

/**
 * @brief Product test callback function
 *
 * @param[in] cmd: Command
 * @param[in] data: data
 * @param[out] ret_data: Resulting data
 * @param[out] ret_len: Resulting data length
 * 
 * @return OPRT_OK on success. Others on error, please refer to "tuya_error_code.h".
 */
OPERATE_RET mf_user_product_test_callback(USHORT_T cmd, UCHAR_T *data, UINT_T len, OUT UCHAR_T **ret_data, OUT USHORT_T *ret_len)
{
    /* USER todo */
    return OPRT_OK;
}

/**
 * @brief mf configure write callback functions
 *
 * @param[in] none
 *
 * @return none
 */
VOID mf_user_callback(VOID)
{
    return ;
}

/**
 * @brief Callback function before entering the production test
 *
 * @param[in] none
 *
 * @return none
 */
VOID mf_user_enter_mf_callback(VOID)
{
    return ;
}

BOOL_T mf_gpio_test_cb(IN CONST CHAR_T *in, OUT CHAR_T *out)
{
    return TRUE;
}


BOOL_T mf_pre_gpio_test_cb(VOID)
{
    return TRUE;
}

/**
 * @brief SOC device initialization
 *
 * @param[in] none
 *
 * @return OPRT_OK on success. Others on error, please refer to "tuya_error_code.h".
 */
OPERATE_RET __soc_device_init(VOID_T)
{
    OPERATE_RET rt = OPRT_OK;

#if (defined(UUID) && defined(AUTHKEY))
    ws_db_init_mf();

    /* Set authorization information
     * Note that if you use the default authorization information of the code, there may be problems of multiple users and conflicts, 
     * so try to use all the authorizations purchased from the tuya iot platform.
     * Buying guide: https://developer.tuya.com/cn/docs/iot/lisence-management?id=Kb4qlem97idl0.
     * You can also apply for two authorization codes for free in the five-step hardware development stage of the Tuya IoT platform.
     * Authorization information can also be written through the production testing tool.
     * When the production testing function is started and the authorization is burned with the Tuya Cloud module tool, 
     * please comment out this piece of code.
     */
    WF_GW_PROD_INFO_S prod_info = {UUID, AUTHKEY};
    TUYA_CALL_ERR_RETURN(tuya_iot_set_wf_gw_prod_info(&prod_info));
#else
    // 产测初始化, 注册函数需要应用实现,其中串口驱动不需要应用提供
    MF_IMPORT_INTF_S intf = {0};

    intf.uart_init = mf_uart_init_callback;
    intf.uart_free = mf_uart_free_callback;
    intf.uart_send = mf_uart_send_callback;
    intf.uart_recv = mf_uart_recv_callback;

    intf.gpio_test = mf_gpio_test_cb;
    intf.mf_user_product_test = mf_user_product_test_callback;
    intf.user_callback = mf_user_callback;
    intf.user_enter_mf_callback = mf_user_enter_mf_callback;
    intf.user_pre_gpio_test = mf_pre_gpio_test_cb;

    TAL_PR_ERR("mf_init APP_BIN_NAME[%s] USER_SW_VER[%s]", APP_BIN_NAME, USER_SW_VER);
    
    TUYA_CALL_ERR_RETURN(mf_init(&intf, APP_BIN_NAME, USER_SW_VER, TRUE));
#endif

    /* Initialize TuyaOS product information */
    TY_IOT_CBS_S iot_cbs = {0};
    iot_cbs.gw_status_cb = __soc_dev_status_changed_cb;
    iot_cbs.gw_ug_cb = __soc_dev_rev_upgrade_info_cb;
    iot_cbs.gw_reset_cb = __soc_dev_restart_req_cb;
    iot_cbs.dev_obj_dp_cb = __soc_dev_obj_dp_cmd_cb;
    iot_cbs.dev_raw_dp_cb = __soc_dev_raw_dp_cmd_cb;
    iot_cbs.dev_dp_query_cb = __soc_dev_dp_query_cb;

    TUYA_CALL_ERR_RETURN(tuya_iot_wf_soc_dev_init(GWCM_OLD, WF_START_AP_FIRST, &iot_cbs, PID, USER_SW_VER));

    TUYA_CALL_ERR_RETURN(tuya_iot_reg_get_wf_nw_stat_cb(__soc_dev_net_status_cb));

    TAL_PR_DEBUG("Youkai init led & key");

    /* Network button, LED initialization */
    app_led_init(LED_PIN);
    app_key_init(KEY_PIN);

    // TAL_PR_DEBUG("Youkai init light\n");

    // TUYA_CALL_ERR_RETURN(app_light_init());

    return 0;
}

STATIC VOID_T user_main(VOID_T)
{
    OPERATE_RET rt = OPRT_OK;

    /* Initialization, because DB initialization takes a long time, 
     * which affects the startup efficiency of some devices, 
     * so special processing is performed during initialization to delay initialization of DB
     */
    TY_INIT_PARAMS_S init_param = {0};
    init_param.init_db = TRUE;
    strcpy(init_param.sys_env, TARGET_PLATFORM);
    TUYA_CALL_ERR_LOG(tuya_iot_init_params(NULL, &init_param));

    tal_log_set_manage_attr(TAL_LOG_LEVEL_DEBUG);

    /* Initialization device */
    TAL_PR_DEBUG("device_init in");
    // TUYA_CALL_ERR_LOG(__soc_device_init());
    TUYA_CALL_ERR_LOG(app_light_init());

    return;
}

/**
* @brief  task thread
*
* @param[in] arg:Parameters when creating a task
* @return none
*/
STATIC VOID_T tuya_app_thread(VOID_T *arg)
{
    /* Initialization LWIP first!!! */
#if defined(ENABLE_LWIP) && (ENABLE_LWIP == 1)
    TUYA_LwIP_Init();
#endif

    user_main();

    tal_thread_delete(ty_app_thread);
    ty_app_thread = NULL;
}

/**
 * @brief user entry function
 *
 * @param[in] none: 
 *
 * @return none
 */
VOID_T tuya_app_main(VOID_T)
{
    THREAD_CFG_T thrd_param = {4096, 4, "tuya_app_main"};
    tal_thread_create_and_start(&ty_app_thread, NULL, NULL, tuya_app_thread, NULL, &thrd_param);
}

四、编译

在ubuntu下使用vscode进行编译很方便。

五、刷机

六、测试结果

如图,其中buf显示的是bh1750返回的值,两个字节。

比如01,38合起来就是0x138=312。

c 复制代码
[01-01 00:43:20 TUYA E][tdd_sensor_bh1750.c:861] [BH1750] __tdd_sensor_bh1750_read
[01-01 00:43:20 TUYA E][tdd_sensor_bh1750.c:425] [BH1750] __bh1750_read_light
[01-01 00:43:20 TUYA E][tdd_sensor_bh1750.c:450] [BH1750] buf = 1 38 light= 312
[01-01 00:43:20 TUYA E][tdd_sensor_bh1750.c:871] [BH1750] get value. resl=2
[01-01 00:43:20 TUYA E][tdd_sensor_bh1750.c:392] light_val->sr_float=312.0
[01-01 00:43:20 TUYA I][app_light.c:147] Light: 312 sg_lt_dp_data.light.dp_value: 312
[01-01 00:43:22 TUYA E][tdd_sensor_bh1750.c:861] [BH1750] __tdd_sensor_bh1750_read
[01-01 00:43:22 TUYA E][tdd_sensor_bh1750.c:425] [BH1750] __bh1750_read_light
[01-01 00:43:22 TUYA E][tdd_sensor_bh1750.c:450] [BH1750] buf = 4 3d light= 1085
[01-01 00:43:22 TUYA E][tdd_sensor_bh1750.c:871] [BH1750] get value. resl=2
[01-01 00:43:22 TUYA E][tdd_sensor_bh1750.c:392] light_val->sr_float=1085.0
[01-01 00:43:22 TUYA I][app_light.c:147] Light: 1085 sg_lt_dp_data.light.dp_value: 312
[01-01 00:43:22 TUYA I][app_light.c:154] Light change. Enable report
[01-01 00:43:24 TUYA E][tdd_sensor_bh1750.c:861] [BH1750] __tdd_sensor_bh1750_read
[01-01 00:43:24 TUYA E][tdd_sensor_bh1750.c:425] [BH1750] __bh1750_read_light
[01-01 00:43:24 TUYA E][tdd_sensor_bh1750.c:450] [BH1750] buf = 4 3d light= 1085
[01-01 00:43:24 TUYA E][tdd_sensor_bh1750.c:871] [BH1750] get value. resl=2
[01-01 00:43:24 TUYA E][tdd_sensor_bh1750.c:392] light_val->sr_float=1085.0
[01-01 00:43:24 TUYA I][app_light.c:147] Light: 1085 sg_lt_dp_data.light.dp_value: 1085

小结

本章只是基础的添加驱动,后续还是需要实现联网并上传到云端。

补充一下,除了前期遇到环境搭建的网络问题,涂鸦的开发还是很舒服的,一键编译和一键下载。