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MP3 based on STM32G0

Overview

1.18650 battery powered.
2.5V2A Typec charging.
3.1.3-inch OLED, 128*64 resolution.
4. Four buttons can poll or interrupt.
5.SD card reading and writing.
6. Audio playback, using CS4344.
7. Equipped with power hardware switch, reset button, and module power soft switch, automatic low-power sleep can be designed.
8. A set of serial ports are left for debugging or other troublesome operations.
9. Can measure battery voltage and calculate remaining power.
10. Charging indicator light and a GPIO controlled LED.

Design Files

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Update:2025-06-19 13:13:57

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