The soil moisture sensor module , built around the LM393 ... module only a few external components are needed to build a relay-driver circuit. Yes, there is a chance to realize one simple non-arduino ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

At points I might do something that might be dangerous because I'm comfortable with some tools or techniques but please always use your common sense and don't try everything you see here.

Each sensor can be communicated with using ... In his garage, the Arduino and a set of relay systems connect to the circuits that control his sprinkler system valves. The Arduino is also connected ...

It’s a fairly simple project, too: just hook an Arduino Uno up to a motion sensor and an electronic switch called a relay, then plug in your fan, and you’re good to go. If that sounds ...

An Arduino measures the temperature of the room via a DS18B20 temperature sensor which then has the ... and turning the unit on/off via a relay connected to the 120vac line would work just ...