stm32使用SCD30模块采集二氧化碳代码

以下是基于STM32使用SCD30模块采集二氧化碳的代码：

#include "stm32f10x.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "delay.h"
#include "i2c.h"

#define SCD30_ADDR 0x61

void SCD30_Init(void)
{
// Wake up the sensor
I2C_SendData(SCD30_ADDR, (uint8_t[]){0x00, 0x10}, 2);

// Wait for the sensor to boot up
delay_ms(2000);

// Start continuous measurement mode
I2C_SendData(SCD30_ADDR, (uint8_t[]){0x00, 0x10}, 2);
}

void SCD30_Read(float *co2, float *temp, float *hum)
{
uint8_t buf[18];

// Read measurement data
I2C_ReadData(SCD30_ADDR, 0x03, buf, 18);

// Parse CO2 concentration
*co2 = (float)((buf[0] << 24) | (buf[1] << 16) | (buf[3] << 8) | buf[4]) / 100.0f;

// Parse temperature
*temp = (float)((buf[6] << 8) | buf[7]) / 100.0f;

// Parse humidity
*hum = (float)((buf[9] << 8) | buf[10]) / 100.0f;
}

int main(void)
{
float co2, temp, hum;

// Initialize I2C and SCD30
I2C_Init();
SCD30_Init();

while (1)
{
// Read data from SCD30
SCD30_Read(&co2, &temp, &hum);

// Print data to serial port
printf("CO2: %0.2f ppm, Temperature: %0.2f C, Humidity: %0.2f %%\r\n", co2, temp, hum);

// Wait for some time
delay_ms(1000);
}
}