arduino uno - Multiple tones with one piezo buzzer - Arduino Stack Exchange
Spectre on X: "A business card stylophone !! Use an #attiny85 and VUSB driver with midi micro-USB output, buzzer and RGB LEDs #attiny85 #pcbart #arduino #music https://t.co/Ra0rLt8VyI https://t.co/MxMM87wEel" / X
2pcs/lot Coopart New loud music speaker buzzer ringer replacement for Tele2 Tele 2 Midi 1.1 top quality - AliExpress