| | |
|---|
| | | /********************************************************************************* |
|---|
| | | * Copyright: (C) 2018 LingYun IoT System Studio |
|---|
| | | * Copyright: (C) 2023 LingYun IoT System Studio |
|---|
| | | * All rights reserved. |
|---|
| | | * |
|---|
| | | * Filename: ds18b20.c |
|---|
| | | * Filename: ds18b20.h |
|---|
| | | * Description: This file is temperature sensor DS18B20 code |
|---|
| | | * |
|---|
| | | * Version: 1.0.0(2018/10/14) |
|---|
| | | * Version: 1.0.0(2023/8/10) |
|---|
| | | * Author: Guo Wenxue <guowenxue@gmail.com> |
|---|
| | | * ChangeLog: 1, Release initial version on "2018/10/14 12:13:26" |
|---|
| | | * ChangeLog: 1, Release initial version on "2023/8/10 12:13:26" |
|---|
| | | * |
|---|
| | | * Pin connection: |
|---|
| | | * |
|---|
| | | * DS18B20 Module Raspberry Pi Board |
|---|
| | | * VCC <-----> #Pin1(3.3V) |
|---|
| | | * DQ <-----> #Pin7(BCM GPIO4) |
|---|
| | | * GND <-----> GND |
|---|
| | | * |
|---|
| | | * /boot/config.txt: |
|---|
| | | * |
|---|
| | | * dtoverlay=w1-gpio-pullup,gpiopin=4 |
|---|
| | | * |
|---|
| | | ********************************************************************************/ |
|---|
| | | |
|---|
| | | #ifndef __DS18B20_H |
|---|
| | | #define __DS18B20_H |
|---|
| | | #ifndef _DS18B20_H_ |
|---|
| | | #define _DS18B20_H_ |
|---|
| | | |
|---|
| | | extern int ds18b20_get_temperature(float *temp); |
|---|
| | | |
|---|
| | | #endif |
|---|
| | | #endif /* ----- #ifndef _DS18B20_H_ ----- */ |
|---|
| | | |
|---|
