We can’t wait for spring to arrive, and we’re looking forward to caring for some plants! We designed this little add-on for micro:bit or CLUE boards – bolt it on with 5 screws to get a buzzer/beeper, motor driver, and breakouts for connecting a soil sensor (two alligator clips + nails work just fine). Simple, but effective!

8mm Buzzer/Speaker on pin P0 - have your plant kit beep when it wants watering, or have it sing a song when its nice and happy.
3V Motor control (on/off) on pin P2 - connect to a water pump to automatically water dry plants
Alligator clip pads for pin P1, 3V and GND - connect to two alligator clips and nails to measure soil resistance

Works with micro:bit in Arduino, MicroPython or MakeCode. For CLUE, you can use CircuitPython or Arduino.

This guide was first published on Mar 19, 2020. It was last updated on Nov 29, 2023.

This page (Overview) was last updated on Mar 12, 2020.

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