| commit | author | age | ||
| d6b4a7 | 1 | /********************************************************************************* |
| G | 2 | * Copyright: (C) 2023 LingYun IoT System Studio |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Filename: ds18b20.h | |
| 6 | * Description: This file is temperature sensor DS18B20 code | |
| 7 | * | |
| 8 | * Version: 1.0.0(2023/8/10) | |
| 9 | * Author: Guo Wenxue <guowenxue@gmail.com> | |
| 10 | * ChangeLog: 1, Release initial version on "2023/8/10 12:13:26" | |
| 11 | * | |
| 12 | * Pin connection: | |
| 13 | * | |
| 14 | * DS18B20 Module Raspberry Pi Board | |
| 15 | * VCC <-----> #Pin1(3.3V) | |
| 16 | * DQ <-----> #Pin7(BCM GPIO4) | |
| 17 | * GND <-----> GND | |
| 18 | * | |
| 19 | * /boot/config.txt: | |
| 20 | * | |
| 21 | * dtoverlay=w1-gpio-pullup,gpiopin=4 | |
| 22 | * | |
| 23 | ********************************************************************************/ | |
| 24 | ||
| 25 | #ifndef _DS18B20_H_ | |
| 26 | #define _DS18B20_H_ | |
| 27 | ||
| 28 | extern int ds18b20_get_temperature(float *temp); | |
| 29 | ||
| 30 | #endif /* ----- #ifndef _DS18B20_H_ ----- */ | |
| 31 | ||
