Munin plugin for monitoring Raspberry Pi internal & external temperature
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LICENCE.txt Update Jun 14, 2018
rpi-dht-sensor_ Updated code to work with newer Adafruit DHT code Nov 23, 2016
rpi-hotspot-wlan0 A quick tool for monitoring connected clients. Jun 14, 2018
rpi-internal-freq Minor comment changes, and added a new plugin for DHT type sensors ba… Jan 31, 2014
rpi-internal-temp Minor comment changes, and added a new plugin for DHT type sensors ba… Jan 31, 2014
rpi-w1-temp Read w1 temperature until CRC is YES Apr 10, 2015


Check the wiki page for results or the blog post in hungarian

Munin plugin for monitoring Raspberry Pi internal temperature: rpi-internal-temp

Munin plugin for monitoring a DS18B20 OneWire based temperature sensor connected to the Raspberry Pi: rpi-w1-temp

Munin plugin for monitoring temperature and humidity with an Aosong 2302, DHT11, DHT22 connected to the Raspberry Pi. This plugin uses the Adafruit binary from

If you use the code

Please give me a star, because it is a good feeling that I helped someone. :)


  1. To use the OneWire sensor load kernel modules: w1-gpio w1-therm You can add them also to /etc/modules

  2. Copy the plugin files to /etc/munin/plugins

OR (cleaner)

  1. Copy the plugin files to /usr/share/munin/plugins and link them

ln -sf /usr/share/munin/plugins/rpi-internal-temp /etc/munin/plugins/rpi-internal-temp

ln -sf /usr/share/munin/plugins/rpi-internal-freq /etc/munin/plugins/rpi-internal-freq

ln -sf /usr/share/munin/plugins/rpi-w1-temp /etc/munin/plugins/rpi-w1-temp

  1. Set the plugins executable

chmod a+x /usr/share/munin/plugins/rpi-internal-temp

chmod a+x /usr/share/munin/plugins/rpi-internal-freq

chmod a+x /usr/share/munin/plugins/rpi-w1-temp

  1. Reload munin-node

Monitor hotspot

Use the rpi-hotspot-wlan0 script, tested on the OrangePi Zero.

DHT sensors

Do the Adafruit setup and copy the to /usr/local/bin Give exec permission: sudo chmod +x /usr/local/bin/

Munin plugins not working

munin will need root access: /etc/munin/plugin-conf.d/rpi


user root

group root

Kernel 3.18.* PROBLEM

The new Raspberry Pi kernel has switched to device trees, this will break the w1 module. link link link

Kernel 3.18.* FIX

Add the following lines to the end of /boot/config.txt

# 1-wire device tree

Kernel 4.0.* DHT11 overlay

The current code is not compatible with the DHT11 overlay. I experimented with it, but 3 out of 5 reads have failed. link Just keep using the adafruit code.