120 lines
2.5 KiB
C
120 lines
2.5 KiB
C
|
#include <stdio.h>
|
||
|
|
#include "ohos_init.h"
|
||
|
|
#include "iot_errno.h"
|
||
|
|
#include "iot_gpio.h"
|
||
|
|
#include "iot_gpio_ex.h"
|
||
|
|
#include "iot_i2c.h"
|
||
|
|
#include <math.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
|
||
|
|
#include "ohos_init.h"
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include <cmsis_os2.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
|
||
|
|
|
||
|
|
#define WIFI_IOT_IO_FUNC_GPIO_0_I2C1_SDA 6
|
||
|
|
#define WIFI_IOT_IO_FUNC_GPIO_1_I2C1_SCL 6
|
||
|
|
#define WIFI_IOT_I2C_IDX_1 1
|
||
|
|
|
||
|
|
#define BH1750_ADDR 0x23
|
||
|
|
|
||
|
|
int BoardInit(void);
|
||
|
|
int E53SC1ReadData(float *data);
|
||
|
|
|
||
|
|
static void GpioInit(void)
|
||
|
|
{
|
||
|
|
printf("GPIO init...\r\n");
|
||
|
|
IoTGpioInit(0);
|
||
|
|
IoTGpioSetFunc(0, WIFI_IOT_IO_FUNC_GPIO_0_I2C1_SDA); // GPIO_0复用为I2C1_SDA
|
||
|
|
IoTGpioInit(1);
|
||
|
|
IoTGpioSetFunc(1, WIFI_IOT_IO_FUNC_GPIO_1_I2C1_SCL); // GPIO_1复用为I2C1_SCL
|
||
|
|
IoTI2cInit(WIFI_IOT_I2C_IDX_1, 400000); /* baudrate: 400kbps */
|
||
|
|
printf("GPIO init...OK\r\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
static int InitBH1750(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
uint8_t send_data[1] = {0x01};
|
||
|
|
ret = IoTI2cWrite(WIFI_IOT_I2C_IDX_1, (BH1750_ADDR << 1) | 0x00, send_data, 1);
|
||
|
|
if (ret != 0) {
|
||
|
|
printf("===== Error: I2C write ret = 0x%x! =====\r\n", ret);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int StartBH1750(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
uint8_t send_data[1] = {0x10};
|
||
|
|
ret = IoTI2cWrite(WIFI_IOT_I2C_IDX_1, (BH1750_ADDR << 1) | 0x00, send_data, 1);
|
||
|
|
if (ret != 0) {
|
||
|
|
printf("===== Error: I2C write ret = 0x%x! =====\r\n", ret);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int BoardInit(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
GpioInit();
|
||
|
|
ret = InitBH1750();
|
||
|
|
// if (ret != 0) {
|
||
|
|
// return -1;
|
||
|
|
// }
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int BH1750ReadData(float* data)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
int result;
|
||
|
|
ret = StartBH1750(); // 启动传感器采集数据
|
||
|
|
if (ret != 0) {
|
||
|
|
printf("Start BH1750 failed!\r\n");
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
usleep(180000);
|
||
|
|
uint8_t recv_data[2] = {0};
|
||
|
|
ret = IoTI2cRead(WIFI_IOT_I2C_IDX_1, (BH1750_ADDR << 1) | 0x01, recv_data, 2); // 读取传感器数据
|
||
|
|
if (ret != 0) {
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
printf("recevie data is :%x,%x\r\n",recv_data[0],recv_data[1]);
|
||
|
|
*data = (float)(((recv_data[0] << 8) + recv_data[1]) / 1.2); //合成数据，即光照数据
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void LEDPWM(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
int temp;
|
||
|
|
float Lux;
|
||
|
|
|
||
|
|
ret = BoardInit();
|
||
|
|
if (ret != 0) {
|
||
|
|
printf("Board Init failed!\r\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
osDelay(300);
|
||
|
|
temp = BH1750ReadData(&Lux);
|
||
|
|
if (temp != 0) {
|
||
|
|
printf("Read Data failed!\r\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
printf("Lux data:%.2f\r\n", Lux);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
APP_FEATURE_INIT(LEDPWM);
|
||
|
|
|
||
|
|
|