1.4 KiB
DS18B20_raspi
Read first
https://pinout.xyz/pinout/1_wire
https://www.raspberrypi-spy.co.uk/2018/02/enable-1-wire-interface-raspberry-pi/
For grafana Influx:
https://pimylifeup.com/raspberry-pi-grafana/
https://pimylifeup.com/raspberry-pi-influxdb/
Hardware
Connect the DS18B20 to the raspberry pi
Raspi - DS18B20
3V3 -> VIN
GND -> GND
GPIO 4 -> DATA
Rember to add a 4K7ohm pull-up resistor between VIN and DATA on the sensor!
Installation
Enable i2c in raspi-config
Copy the files (as root!) report_temperature.service/report_temperature.timer from ./etc/systemd/system to your system /etc/systemd/system
Now tell systemd that you have added new files:
'systemctl daemon-reload'
save temperature_reporter.py to /home/pi/tempsense/.
Enable and start the timer:
'systemctl enable report_temperature.timer --now'
Store script at a differet location.
If you want the script to be stores elsewhere (not in /home/pi/tempsense/.) then you have to edit the file (as root!) /etc/systemd/system/report_temperature.service
Just change the line:
ExecStart=/home/pi/tempsense/temperature_reporter.py
Configure the script before running.
in temperature_reporter.py
comfigure:
'
INFLUX_IP = ""
INFLUX_PORT = 8086
INFLUX_DB = ""
INFLUX_USER = ""
INFLUX_PASS = ""
'
You can give the sensors costum names to be reoported by configuring the in the device names:
device_names = {"28-000000000000":"Sensor_Name"}