User manual

Ausgabe 07.12.2016 Copyright by Joy-IT 15

RPi - Explorer700

9. DS18B20 sample programs - Temperature sensor Demos

(Notes: To use the DS18B20 program, you should add a line dtoverlay=w1-gpio-pullup to the end of

the Raspberry Pi boot le /boot/cong.txt, and restart the RPi to make it take eect. For more

detailed informaon, please refer to the relave Raspberry Pi documents.)

 sysfs program:

Enter the Linux terminal, and run the following commands to execute the program:

Expected result: The terminal will display the following informaon:

Press the keys Ctrl+C to end the program.

 python program:

Enter the Linux terminal, and run the following commands to execute the program:

Expected result: The terminal will display the following informaon:

Press the keys Ctrl+C to end the program.

rom: 28-00000674869d

temp: 30.437 °C

temp: 30.375 °C

pi@raspberrypi ~/Explorer700/DS18B20/fs $ sudo ./ds18b20

rom: 28-00000674869d

C=29.687 F=85.437

pi@raspberrypi ~/Explorer700/DS18B20/python $ sudo python ds18b20.py