A simple and convenient way to interface 2 relays for switching application in your project. This relay driver boosts the input impedance with a regular BC547 NPN transistor (or equivalent). Very ...

Making PCBs can be hard. Learn about a free tool that helps hobbyists and beginners create real circuit boards without using complex software.

CircuitLab is a free, web-based tool for creating schematics: it’s dead simple to place resistors, capacitors, batteries and way more onto the drawing board and connect it all together. You can also ...

The whole project was developed on a friend’s request. Its purpose was to remotely monitor the water-level in a metal tank located in the attic by means of a very simple control unit placed in the ...

I know very little about electronics, but if you give me a schematic and a pile of parts, I can more-or-less assemble them correctly.<br><br>I am trying to build a simple circuit to simulate the ...