18B20 temp sensor on Raspberry Pi

Linux

• First add dtoverlay=w1-gpio to /boot/config.txt, for example with sudo nano /boot/config.txt
• After reboot use sudo modprobe w1-gpio and sudo modprobe w1-therm
• The temperatures are then shown at /sys/bus/w1/devices/28-*********/w1_slave. Use cat to show contents