[Larry] solved his trivia game buzzer problems by building a wireless buzzer set. It features 3D printed enclosures containing Adafruit Feather microcontrollers, and instead of wires it uses ...

Homeowners have praised an £11 Amazon doorbell for being 'foolproof' and a 'game changer' when it comes to missed parcels. The buzzer, which has received 9,000 ratings, features a wireless ...