1. Use single-chip microcomputer to realize music beat generator;
2. Use buttons to set the beat (2/4; 3/4; 4/4);
3. Use LED or LCD to display the name and speed of the selected rhythm;
4. Use buttons to adjust Beat speed;
5. Use the buzzer to send out different beats (strong, weak, and weak are 3/4 beats)
2/4 a quarter, 2 beats, 1 beat, 1s, strong tick, weak
3/4, 3 beats, 1 beat, 1s, strong, weak, weak,
4/4, 4 beats, a beat, 1s, strong, weak, Second strong, weak
