an audio input switch box project with arduino uno, cd4052b multiplexer and pcd8544 lcd display.
- arduino uno
- pcd8544 / nokia 5110 lcd
- cd4052b 4x1 multiplexer
- npn transistor (x2)
- 1k res (x2)
- button (x4)
- 3.5 mm input jack (x5)
- add bt v5.0 audio gateway