A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

Makers, hobbyists and electronic enthusiasts searching for a project to keep them busy this weekend may be interested in a new DIY custom mechanical keypad complete with TFT LCD display, which has ...

This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget spinners. There is another application to consider – a rear wheel tachometer for ...