It takes just a few common components to build a simple wireless transmitter circuit like this one. The signal it produces can be picked up my AM radios within a few meters proximity. Experiment with different components, morse keyers, or even antennae design – classic electronics fun. – Wireless demo project [via]
Related:
HOW TO: Build a wireless receiver and transmitter device
In the Maker Shed:
DIY Design Electronics Kit
ADVERTISEMENT