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JL 5.0 Bluetooth-compatible AC6921A Stereo Multi-function Multi-IO Port Supports SD Card/U Disk/FM Chip
GitHub - christian-kramer/JieLi-AC690X-Familiarization: Adventures in figuring out how this incredibly ubiquitous, yet incredibly mysterious integrated circuit works.
GitHub - christian-kramer/JieLi-AC690X-Familiarization: Adventures in figuring out how this incredibly ubiquitous, yet incredibly mysterious integrated circuit works.
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