One of the best ways to learn about radios is to build your own ... this with a simple HF SDR receiver built on a breadboard. An Arduino is used to control the SI5351 clock generator, which ...

The trick is using a breadboard where each bus bar is connected to an IO pin on an Arduino Due. A program runs through each point on the breadboard, running a continuity test to see if there’s a ...

Building an Arduino speed detector using IR technology to measure the speed of a moving object is much more cost-effective, ...