Spencer Organ recently went to the virtual Preston Raspberry Jam which had a gardening theme to talk about his project – a Raspberry Pi Pico watering can. You can see the innards above. Costing under £15, the project helps to monitor a single plant (in Spencer’s case a Sweetpea plant) and tell you the soil moisture level. The level is displayed as a nice graph on a cheap SSD and the whole thing is powered by a Raspberry Pi Pico. A 3D-printed enclosure in the shape of a watering can keeps the whole thing tidy.
You can watch Spencer talk about his project by going to this YouTube video – open up the full description of the video and then click to skip directly to his talk.