circuits

Input Multiplexing – Maximum Pins with Minimal Resources

What to do when you need more GPIO pins but don’t have the space, memory, or budget for the usual solutions?

If you’re looking for a free and easy tool to convert ECAD to MCAD, then ecad.io is what you’re looking for.

Autodesk expands its cadre of useful digital tools by acquiring EAGLE, a popular free to use print circuit board (PCB) site.

There’s a wide variety of LEDs on the market, in different shapes and sizes. Choose your LED with these things in mind.

You can get a lot of quick info from a business card — name, job title, contact info — and now you can also see your heart beat.

Circuit parts are getting smaller, but our eyes and fingers can only troubleshoot so much. Find the issue with a thermal camera and a special lense.

If you’re ready to finalize a breadboarded circuit, but not quite ready to create a printed circuit board, then your next step is protoboard.