Watering the garden is important to do regularly if you want your plants to thrive. [Nikodem Bartnik] built a system to handle it for him, keeping his garden on the grow.
The system has an Arduino commanding an irrigation system based around a pump delivering water from a reservoir. It’s paired with a water level sensor to keep an eye on the water available to the system. Moisture sensors are also used to monitor the prevailing soil conditions, to ensure the plants aren’t over- or under-watered. In this case, [Nikodem] designed his own resistive moisture sensors, which proved difficult but taught him a lot along the way. verything was then wrapped up in a food container to make it waterproof for installation outside. A solar panel and charging system was also installed to power the whole setup without requiring a mains connection.
While this system worked, the moisture sensors were a bit unreliable and there was a lot of cabling involved. A second revision got rid of the sensors and used a Pi Pico to implement a simple timer-based irrigation scheme.
Either way, both systems worked and helped keep the vital water flowing to the garden bed. Automatic plant watering is a bit of a popular theme around here, and we’ve seen some nifty hacks in that realm of late. Video after the break.