Most often ultrasonic transducers are used for distance measurements, and in the DIY world, usually as a way for robots to detect obstacles. But for a weekend project, [Vinod.S] took the ultrasonic ...

It is possible to switch between 'Transmitter mode' which can play music simultaneously with up to two Bluetooth speakers, and 'Receiver mode' which can receive voice of up to two Bluetooth-compatible ...

We may receive a commission on purchases made from links. Streaming devices are a great way to watch all your favorite content on a large screen, but that's only true if the content comes from a ...

The best wireless headphones and best true wireless earbuds let us enjoy audio content without being tethered to our laptop, smartphone or tablet. But as convenient and packed with features as they ...

Using this circuit, audio musical notes can be generated and heard up to a distance of 10 metres. The circuit can be divided into two parts: IR music transmitter and receiver. The IR music transmitter ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Adrienne Maxwell and Dennis Burger These days, most mainstream audio ...

Get your feet wet with radio frequency transmitters and receivers by working your way through this pair of tutorials. [Chris] built the hardware around a couple of 555 timers so you don’t need to ...