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44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/******************************************************************************
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* 作者：kerwincui
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* 时间：2021-06-08
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* 邮箱：164770707@qq.com
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* 源码地址：https://gitee.com/kerwincui/wumei-smart
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* author: kerwincui
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* create: 2021-06-08
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* email：164770707@qq.com
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* source:https://github.com/kerwincui/wumei-smart
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******************************************************************************/
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#ifndef _I2C_TEMP_H_
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#define _I2C_TEMP_H_
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#include <stdio.h>
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#include "esp_log.h"
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#include "driver/i2c.h"
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//##被称为连接符（concatenator），用来将两个Token连接为一个Token。
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#define _I2C_NUMBER(num) I2C_NUM_##num
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#define I2C_NUMBER(num) _I2C_NUMBER(num)
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// #define I2C_MASTER_NUM I2C_NUMBER(0) // I2C主机端口号
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#define I2C_MASTER_FREQ_HZ 100000 // I2C主机时钟频率
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#define I2C_MASTER_TX_BUF_DISABLE 0 //I2C主机不需要缓冲区
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#define I2C_MASTER_RX_BUF_DISABLE 0 //I2C主机不需要缓冲区
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#define WRITE_BIT I2C_MASTER_WRITE // I2C主机写
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#define READ_BIT I2C_MASTER_READ // I2C主机读
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#define ACK_CHECK_EN 0x1 // I2C主机将检查从机的ack
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#define ACK_CHECK_DIS 0x0 // I2C主机将不检查从机的ack
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#define ACK_VAL 0x0 // I2C ack值
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#define NACK_VAL 0x1 // I2C nack值
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//SHT30
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#define SHT30_WRITE_ADDR 0x44 //地址
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#define CMD_FETCH_DATA_H 0x22 //循环采样，参考sht30 datasheet
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#define CMD_FETCH_DATA_L 0x36
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void i2c_temp_start(void);
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//获取空气温湿度
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void get_temp_humi();
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#endif
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