Arduino Tutorial

These are two - easy to build - relay-based alarms. You can use them to protect your motorcycle -...

This one-valve (ECL82) CW Transmitter occupies a very special place in my amateur radio history....

Ions are defined as electrically charged atoms. Positively charged ions have a deficiency of...

This was my very first arduino project. Its great for beginners. Fade the color or the lights my...

I have a copper mesh (10cm x 10cm square) in a vacuum chamber connected to a BNC connector by a...

A Transcutaneous Electrical Nerve Stimulation (TENS) device is, put bluntly, a machine for giving...

This circuit is used to trigger a camera`s electronic shutter circuit when a flash of lightning...

The metal detectors can be classified according to their principle of operation in those three...