If you are using a 5V relay instead of 12V relay, you only have to connect the arduino GND. I am using a 12V relay. So the coil voltage required would be higher. Problem 2. When ... Hope this simple ...

In the old days, a physical button or switch on the dashboard of your car would have been wired to whatever device it was controlling. There was potentially a relay in the mix, but still, it wasn&#… ...

My setup is a relay on the 240V line, a programmed temp swing of 5deg, and cool down period of 5 minutes after ac shutdown before it can turn on again to avoid damaging the compressor.

Arduino Uno. 4-channel relay module. PIR motion sensor. Steps: Use Arduino to handle sensor input and relay control. Pi runs a Python Flask server with a simple UI to toggle GPIO pins via serial ...

Build Your Own Arduino Powered Automatic Blinds. Thorin Klosowski September 28, 2012 Comments. One of the easiest tricks to keeping a house warm (or cool), is to ...

Using a little Arduino hardware and programming YouTuber Brumberjack Woodworks has created a fantastic automatic dust collection system for his workshop.

The Arduino Automatic Smart Plant Watering Kit 2.0 is available in the Geeky Gadgets Deals store for $69, have a look at the video below. Watch this video on YouTube.