There is no better way to learn electronics and coding than building your own Arduino and Raspberry Pi powered devices. UrinalCake37’s Raspberry Pi driven raised garden bed can inspire you to come up with your own ideas. It is fully automated and closes when the temperature reaches 32F inside. It also monitors humidity, soil moisture level, and water with sensors.
This project was completed with a Raspberry Pi 4 and hydrosys4 program, which is used for irrigation. The budget was about $150. You can find out more about this smart raised garden bed here.