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增加I2C 使用SHT40温湿度传感器上传TCP客户端数据

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冯佳
2026-03-03 16:39:19 +08:00
parent 23bb103fb5
commit cc4c361df6
16 changed files with 1854 additions and 393 deletions
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app/sht40.h Normal file
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/*
* SHT40 温湿度传感器驱动
* 功能：通过I2C1读取SHT40传感器的温湿度数据
* 依赖：STM32 HAL库
* 跨平台：仅适用于STM32F4系列，使用HAL库的I2C接口
*/
#ifndef __SHT40_H__
#define __SHT40_H__
#include <stdint.h>
#include "stm32f4xx_hal.h"
/* SHT40 I2C地址 */
#define SHT40_I2C_ADDR 0x44
/* SHT40命令 */
#define SHT40_CMD_MEASURE_HIGH_PRECISION 0xFD // 高精度测量（高重复性）
#define SHT40_CMD_MEASURE_MED_PRECISION 0xF6 // 中精度测量（中重复性）
#define SHT40_CMD_MEASURE_LOW_PRECISION 0xE0 // 低精度测量（低重复性）
#define SHT40_CMD_RESET 0x89 // 软复位
#define SHT40_CMD_READ_SERIAL 0x00 // 读取序列号
#define SHT40_CMD_HEATER_HIGH 0x94 // 加热器开启（高功率，200mW）
#define SHT40_CMD_HEATER_MED 0x91 // 加热器开启（中功率，110mW）
#define SHT40_CMD_HEATER_LOW 0x8D // 加热器开启（低功率，20mW）
/* 函数声明 */
int sht40_init(void);
int sht40_read_temperature_humidity(float *temperature, float *humidity);
int sht40_read_temperature_humidity_with_precision(float *temperature, float *humidity, uint8_t precision);
int sht40_reset(void);
int sht40_read_serial(uint32_t *serial);
int sht40_heater_enable(uint8_t power_level);
#endif