The transmitter and receiver For the transmitter, he turned an Arduino Pro Micro into a USB sound card which he could plug into his laptop. That outputs both the audio signal and a 40 kHz carrier ...

As we all know, wearing a helmet is mandatory in most countries, including India while driving a vehicle, not just because of ...

It doesn’t look as thoug any code or diagrams are available ... charge the batteries using a Qi transmitter that lines up with the associated receiver when in the home position.