This Arudino project reads Capacitive Soil Moisture Sensors, measures soilMoistureValue vs AirValue vs WaterValue, and then triggers a relay module to switch water pumps on/off when needed. - ...

The Smart Timer Relay Controller is an Arduino-based project designed to automate the control of an LED (or other electronic devices) based on specific hours of the day. By utilizing a Real-Time Clock ...

Zero - Arduino Try Out. From the circuit diagram of the module, it is clear that, apart from the module only a few external components are needed to build a relay-driver circuit. Yes, there is a ...