Self Watering Plants
Build a self watering plant system
11 March 20231 minute read
By Kevin McAleer
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Build a self watering plant system
11 March 2023
By Kevin McAleer
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Watch the associated video here:
| Items | Description | Qty | Price |
|---|---|---|---|
| Enviro Grow | Pimoroni Enviro Grow | 1 | £39.99 |
| or | |||
| Accessory Kit | Pimoroni Enviro Grow kit accessory kit | 1 | 49.50 |
| or | |||
| Grow Hat Mini | Pimoroni Grow Hat Mini for Raspberry Pi | 1 | £27.50 |
| M2 Screws | M2 Screws | 4 | £2.00 |
I’ve designed some cute Geometric plant pots with integrated drainage holes, feed-tube input an sensor holder.
This is the second interation of the design, the first version caused the self watering system to mis-read the sensors as the sensor was not deep enough into the soil to take a proper reading, and instead kept watering the plant until the water supply ran out.

The Grow Hat Mini is mounted on top of a Raspberry Pi Zero W, which is intern mounted on a Pi Stand.
The Grow Hat Mini, or Enviro grow connects to the 3 soil moisture sensors, and also to the three water pumps, and each water pump connects to a plant pot (ensure that the sensor and pump are connected to the same plant - A, B & C).
plantpot.stl - Large Plantpotgrow holder.stl - Enviro Grow Holderconnector.stl - Connector (connects the feed tube to the plantpot)
Kevin McAleer
I build robots, bring them to life with code, and have a whole load of fun along the way
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