added uptime

This commit is contained in:
Your Name
2020-12-15 22:58:30 +02:00
parent a76d1d5e53
commit 8b704de74b
3 changed files with 54 additions and 37 deletions

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@@ -3,7 +3,7 @@ Python script to check the cpu load, cpu temperature, free space, used memory, s
on a Raspberry Pi computer and publish the data to a MQTT broker.
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 3 seconds as there are 5 half second sleeps in the code - due to mqtt haveing problems if I shoot the messages with no delay, this is only if you choose to send the messages separetely, now the script support a group CSV message that don't have this delay.
The script if very light, it takes 3 seconds as there are 5 half second sleeps in the code - due to mqtt having problems if I shoot the messages with no delay, this is only if you choose to send the messages separately, now the script support a group CSV message that don't have this delay.
Each value measured by the script is send via a separate message for easier craetion of home assistant sensors.
@@ -39,7 +39,7 @@ Then install this module needed for the script:
$ pip install paho-mqtt
```
Copy ```/src/rpi-cpu2mqtt.py``` and ```/src/config.py.example``` to a folder of your choise (I am using ```/home/pi/scripts/``` ) and rename ```config.py.example``` to ```config.py```
Copy ```/src/rpi-cpu2mqtt.py``` and ```/src/config.py.example``` to a folder of your choise (I am using ```/home/pi/scripts/``` ) and rename ```config.py.example``` to ```config.py```
# Configuration
@@ -51,7 +51,7 @@ This is the default configuration:
```
random_delay = randrange(30)
group_messages = True
group_messages = True
sleep_time = 0.5
cpu_load = True
cpu_temp = True
@@ -60,23 +60,24 @@ voltage = True
sys_clock_speed = True
swap = False
memory = False
uptime = True
```
If the ```group_messages``` is set to true the script will send just one message containing all values in CSV format.
The group message looks like this:
```
{'used_space': '25', 'sys_clock_speed': '1500', 'cpu_temp': '43.0', 'voltage': '0.8500', 'cpu_load': '1.25', 'memory': 'False', 'swap': 'False'}
1.3, 47.1, 12, 1.2, 600, nan, 14.1, 12
```
Test the script.
```bash
$ /usr/bin/python /home/pi/scripts/rpi-cpu2mqtt.py
$ /usr/bin/python /home/pi/rpi-mqtt-monitor/rpi-cpu2mqtt.py
```
Once you test the script there will be no output if it run OK but you should get 5 messages via the configured MQTT server (the messages count depends on your configuration).
Create a cron entry like this (you might need to update the path in the cron entry below, depending on where you put the script files):
```
*/2 * * * * /usr/bin/python /home/pi/scripts/rpi-cpu2mqtt.py
*/2 * * * * /usr/bin/python /home/pi/rpi-mqtt-monitor/rpi-cpu2mqtt.py
```
# Home Assistant Integration
@@ -122,13 +123,19 @@ This is the sensors configuration if ```group_messages = True``` assuming your s
state_topic: 'masoko/rpi4'
value_template: '{{ value.split(",")[5] }}'
name: rpi4 swap
unit_of_measurement: "%"
unit_of_measurement: "%"
- platform: mqtt
state_topic: 'masoko/rpi4'
value_template: '{{ value.split(",")[6] }}'
name: rpi4 memory
unit_of_measurement: "%"
unit_of_measurement: "%"
- platform: mqtt
state_topic: 'masoko/rpi4'
value_template: '{{ value.split(",")[7] }}'
name: rpi4 uptime
unit_of_measurement: "days"
```
This is the sensors configuration if ```group_messages = False``` assuming your sensors are separated in ```sensors.yaml``` file.
@@ -161,12 +168,16 @@ This is the sensors configuration if ```group_messages = False``` assuming your
- platform: mqtt
state_topic: "masoko/rpi4/swap"
name: rpi4 swap
unit_of_measurement: "%"
unit_of_measurement: "%"
- platform: mqtt
state_topic: "masoko/rpi4/memory"
name: rpi4 memory
unit_of_measurement: "%"
- platform: mqtt
state_topic: "masoko/rpi4/uptime_days"
name: rpi4 uptime
unit_of_measurement: "days"
```
Add this to your ```customize.yaml``` file to change the icons of the sensors.
@@ -205,7 +216,7 @@ entities:
- entity: sensor.rpi4_sys_clock_speed
- entity: sensor.rpi4_swap
- entity: sensor.rpi4_memory
- entity: sensor.rpi4_uptime
```
# To Do
- add uptime monitoring
- maybe add network trafic monitoring via some third party software (for now I can't find a way to do it without additinal software)
- maybe add network traffic monitoring via some third party software (for now I can't find a way to do it without additional software)