In this beginner-friendly tutorial, I'll show you how to create a simple project where a buzzer plays a tune on loop using an Arduino. This is a perfect introduction to working with sound on ...

The DCF77 receiver is connected to digital pin 15. The sketch attaches an interrupt to measure the length of the pulses. A 0.1 sec pulse is binary 0, a 0.2 sec pulse is binary 1. One pulse per second, ...