文章目录
- 前言
- 一、基础介绍
- 二、电路图
- 2.1 电路图1
- 2.2 电路图2——实际采用
- 三、代码
- 四、编译
- 五、刷机
- 六、测试结果
- 小结
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。
- 软重置：__bh1750_write_cmd(dev, BH1750_CMD_SOFT_RESET);
- 设置模式：__bh1750_write_cmd(dev, BH1750_CMD_ONE_H_RES_MODE);
- 等待采样：__bh1750_delay_ms(180);
- 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
/*** @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-endianstruct {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" directlyUSHORT_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
/*** @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
/*** @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 downdev->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 paramif (i2c_cfg.gpio.scl == i2c_cfg.gpio.sda) {return OPRT_INVALID_PARM;}// I2C inittdd_sensor_i2c_init(i2c_cfg.port, i2c_cfg.gpio);// save resourse informationSR_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;//1break;case SR_LT_PREC_MEDIUM:resource.info[BH1750_RSRC_INDEX_RESL] = 1;//0.5break;case SR_LT_PREC_LOW:resource.info[BH1750_RSRC_INDEX_RESL] = 82;//41break;default:resource.info[BH1750_RSRC_INDEX_RESL] = 1;//2break;}// define driver interfacesSTATIC 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 deviceOPERATE_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
/*** @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 limitsg_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 statusop_ret = __bh1750_clear_status();if (op_ret != OPRT_OK) {return op_ret;}// enable alert functionSR_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
/*** @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 restarttal_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();
#endifuser_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。
[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。
