To monitor plant health several approaches have been worked out, but could be taken further. Let us know beforehand if you’re interested to work on this, then we can bring the materials!
- Using MiFlora Bluetooth sensors and Grove sensors in combination with a raspberry pi zero gateway: https://github.com/salekd/plant_monitor_rpi
- Using a kit from SwitchDoc Labs http://www.switchdoc.com/2017/01/new-kickstarter-smartplantpi-raspberry-pi-based-plant-monitoring-and-watering-system-kit/
- Using a NDVI camera based on Raspberry Pi (Plant Health camera Gerrit Polder: https://www.element14.com/community/community/design-challenges/pi-iot/blog/authors/gpolder )
- PAR sensor: PAR (Photosynthetically Active Radiation) is the light that makes plants grow. Professional PAR sensors are expensive, with some filters and sensors available we can make affordable ones