Tweakers · Technology

Hobbyist converts 'walkman' into mp3 player

A hobbyist has converted an old walkman into an mp3 player, retaining the original physical buttons.

The project combines an old cassette player with an mp3 player. A special 'cassette tape' contains the necessary hardware to play mp3's through the walkman.

The hardware consists of an ESP32 with an SD card, a sound card, and a small battery. The battery provides up to ten hours of listening time and can last for months in sleep mode.

A rotary sensor detects when the walkman's gears start turning after pressing the play button. A sound card converts the digital music into signals that the cassette player can process.

Many parts, including the gears, are 3D-printed. The project is purely for hobby purposes and serves only to play music using the walkman's analog buttons.

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