friso/rpi-mqtt-monitor
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fixed a but in memory reporting

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Hristo Jelev
2020-04-29 00:23:15 +03:00
parent f4f404f0c9
commit aea451e228
2 changed files with 14 additions and 3 deletions
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14
README.md
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@@ -1,9 +1,9 @@
# Rapsberry Pi MQTT monitor
Python script to check the cpu load, cpu temperature, free space, voltage and system clock speed
Python script to check the cpu load, cpu temperature, free space, used memory, swap usage, voltage and system clock speed
on a Raspberry Pi computer and publish the data to a MQTT server.
I wrote this so I can monitor my raspberries at home with [home assistant](https://www.home-assistant.io/). The script was written and tested on Python 2 but it should work fine on Python 3.
The script if very light, it takes 4 seconds as there are 4 one second sleeps in the code - due to mqtt haveing problems if I shoot the messages with no delay.
The script if very light, it takes 7 seconds as there are 7 one second sleeps in the code - due to mqtt haveing problems if I shoot the messages with no delay.
Each value measured by the script is send via a separate message for easier craetion of home assistant sensors.
@@ -72,6 +72,16 @@ This is the sensors configuration assuming your sensors are separated in ```sens
state_topic: "masoko/rpi4/sys_clock_speed"
name: rpi 4 sys clock speed
unit_of_measurement: "hz"
- platform: mqtt
state_topic: "masoko/rpi4/swap"
name: rpi 4 swap
unit_of_measurement: "%"
- platform: mqtt
state_topic: "masoko/rpi4/memory"
name: rpi 4 memory
unit_of_measurement: "%"
```
After that you need to create entities list via the home assistant GUI.

3
rpi-cpu2mqtt.py
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@@ -79,9 +79,10 @@ def publish_to_mqtt (cpu_load, cpu_temp, used_space, voltage, sys_clock_speed, s
time.sleep(1)
client.publish(mqtt_topic_prefix+"/"+hostname+"/swap", swap, qos=1)
time.sleep(1)
client.publish(mqtt_topic_prefix+"/"+hostname+"/swap", memory, qos=1)
client.publish(mqtt_topic_prefix+"/"+hostname+"/memory", memory, qos=1)
time.sleep(1)
client.publish(mqtt_topic_prefix+"/"+hostname+"/sys_clock_speed", sys_clock_speed, qos=1)
time.sleep(1)
#disconect from mqtt server
client.disconnect()