[GreatScott] does exactly this in the video after the break, building both a transmitter and receiver ... Around these parts, the venerable 555 timer is always brought up whenever things get ...

But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver from a distance-meter module and used amplitude modulation to send music ultrasonically from his laptop to a ...

Coming in two parts, the 4URPC Wireless Transmitter and Receiver Gen 2 (via Yanko Design) has a USB-C connection on one end and HDMI on the other. You plug the latter into a spare port on your TV ...