kkoz3434/lwm2m-astro-pi

Project for IoT lessons at AGH UST

Astro Pi

Project for IoT lessons at AGH UST.

We've been given a Raspberry Pi with Sense Hat detectors used for Astro Pi projects. Project assumes setting our Pi as a LWM2M server and exposing some made-up astro object.

There has been defined and exposed one LWM2M object (3300, Generic Sensor) with three instances representing following resources:

• (0) Level of charging power (Astro-ship batteries are charged using solar panels and we're exposing how much does the ship is faced towards the sun)
• (1) Planet we are currently at (using atmospheric data collected by sensors)
• (2) Number of astronauts on the ship (uses camera to take a picture and OpenCV to detect people at it)

Implementation

Implementation of these resources takes place in python files called ResourceHandlers.

• SensorValue (ResourceHandler 5700) is responsible for computing actual values. It contains business logic and computes it depending on instance_id passed as an argument to the read() function
• Application_Type (ResourceHandler 5750) represents an application type and contains description of every instance
• Sensor_Unit (ResourceHandler 5701) represents the sensor units, so it defines the meaning of values returned by sensor value ResourceHandler

Project in action

The svetovid service has to be enabled at the Raspberry Pi. (https://github.com/AVSystem/Svetovid-raspberry-client) Then a web browser LWM2M service Coyote (https://www.avsystem.com/products/coiote-iot-device-management-platform) can connect to this device and read values from our generic and other basic sensors.

Authors

• Krzystof Siekierzyński (https://github.com/ksiek127)
• Tomasz Koszarek (https://github.com/koszar91)
• Szymon Rynkownski (https://github.com/rynkow)
• Jakub Koźlak (https://github.com/kkoz3434)
• Kamil Pluciński (https://github.com/K4m1lP)
• Paweł Holowicki (https://github.com/Gajkes)