Introduction - If you have any usage issues, please Google them yourself
Using the key S1~S4 and the buzzer designed on the JD51 board, the electronic tone generator (1) uses the key S1~S4 on the JD51 development board to make the tone selection, that is to press the different switches to produce different tones, and then press the S1~S4 and the combination keys in turn. The buzzer sends out the eight tones of the tone; and it is displayed on the digital tube. (2) write 2 songs and choose to play.