张三叔

AC6905A lossless MP3 improved version

Overview

The main control IC is Jerry's AC6905A, which has low power consumption and simple peripherals.

It mainly plays files through TF card reading (actually measured, it can read TF memory cards with a capacity of up to 128G). It is also equipped with a Bluetooth function, which can output the signal received by Bluetooth through the headphones.

Equipped with TP4057 charging chip, dual lights (yes/no) to indicate charging completion status

Four button control, can switch TF card reading/Bluetooth receiving mode. Pause/play, next song/volume +, previous song/volume -

The toggle switch controls the operation, and when the power is turned off, the last played music file, volume setting and playback progress are memorized (related to the IC burning program, you can buy this kind on Taobao, which costs about 3 yuan)

Design Files

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Update:2025-06-04 04:45:15

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