Devops tools to monitor polytunnel
Devops tools to monitor polytunnel
Who am i
- currently doing node and devops
- previously done frontend too
- ...worked on a dental practice management software and fall in love with hardware
...back to polytunnel
polytunnel part
- growing cucumber
- in polytunnel
- about 1000 square meter (m2)
- with heating option
Cucumber
devops part
- monitoring CPU temperature
- getting alerted by unusual metrics (something is down, temperature is too high etc)
- historical and realtime visualization
- (also you develop stuff and deploy as well)
how what about to
- monitor temperature in polytunnel
- getting alerted if temperature drops below 10 degrees
- making decision making process better by historical and realtime visualization
how to get started
software part is easy, what about the hardware
- measure temperature
- measure humidity
- send data to a remote server
Raspberry pi
what about the sensor?
my first thought was arduino, but
- you have to buy the temperature, humidity sensor separately
- you have to write code to make it work
- need to find out how to transfer data from arduino to Raspberry pi
Sensortag
Sensortag
- multiple sensors (humidity, temperature, pressure, gyroscope, accelerometer, magnetometer)
- uses Bluetooth 4
- it works out of the box
Current architecture
Current architecture
- Raspberry PI reads sensor data
- RPI sends data to a remote server
- Server stores in db
The remote side
The remote side
- influxdb
- grafana
- Riemann
actually it's not riemann but the node.js port: godot
The future
The future
- better battery life (currently ~2 weeks)
- multiple sensors
- move away from wifi, use cable
- alerting
Future architecture
Alerting
- humidity is too high:
IF humidity > 90 for 2 hours THEN notify - heating is broken:
IF external_temperature < 10 AND temperature < 15 for 30 minutes THEN notify
Alerting
- plug into pagerduty
- detect low battery level
- detect broken sensor
- detect internet connection problems
Final thoughts
Open source is amazing, you can build anything you want. I've used open source softwares to build this. What I had to is just put together the lego bricks
Thank you people for making these awesome open source stuffs. YOU ARE AWESOME
Of course this is open source as well: https://github.com/oroce/sensortag-with-godot
Questions?
