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+--- Thread: add DS18B20 sensor to Server16 (raspberry pi4 GPIO) by 1-Wire via Sys Bus in HA (/showthread.php?tid=5440)
add DS18B20 sensor to Server16 (raspberry pi4 GPIO) by 1-Wire via Sys Bus in HA - admin - 04-02-2024
1. install "1-Wire via Sys Bus" component on HACS
2. add dtoverlay=w1-gpio,gpiopin=17 command line to TF card->config.txt
for example, this use GPIO17 of CM4 connect with DS18B20 temperature sensor.
if you use GPIO16, command is dtoverlay=w1-gpio,gpiopin=16
so you can add different GPIOs for different 1-wire device.
3. Raspberry Pi checking connected devices via ssh
If you set up ssh, you can check the connected one-wire devices in the following folder: /sys/bus/w1/devices The device IDs begin with 28-.
After installed the package in HACS, install the 1-Wire SysBus integration under Setttings-> Devices & services.
Entities
Upon startup of the platform, the 1-wire bus is searched for available 1-wire devices creates entities based on the sensor unique id:
sensor.28.FF5C68521604_temperature