Raspberry Pi Plant Watering System

Here's what I've been working on at Infusion lately: documenting the Raspberry Pi based plant watering system that measures the moisture content of the soil and triggers a relay-driven valve to water the plant:

Control software was built using node-red, with a FRED endpoint to talk to the cloud-hosted node-red instance that allows a public dashboard to be displayed (public dashboard available here).

One of the awesome things about node-red is that you can easily view the dashboard from a browser, and with FRED you can access it anywhere:

Detailed hardware and software write-ups on the PiShield site.