Junluan
Technical Deep Dive：
- IC: AC6951C SoC with integrated Bluetooth RF, DSP, and audio codecs
- Memory: External SPI Flash for firmware and settings
- Audio Path:
- ADC: 3-channel 16-bit, SNR ≥90dB
- DAC: 2-channel 16-bit, SNR ≥95dB
- Sampling Rates: 8kHz–48kHz, including 44.1kHz and 48kHz for Hi-Res
- Power Management: Built-in charging circuit for Li-ion batteries
Hacking Ideas：
- Custom Firmware: Dump the existing firmware and modify behavior
- MIDI Over Bluetooth: Repurpose the audio channel for MIDI data
- Multi-Room Audio: Sync multiple modules for whole-home audio
- Voice Control Interface: Integrate with ESP32 or Raspberry Pi for Alexa/Google Assistant
Pinout Analysis (partial):
- Battery: 2-pin 2.0mm pitch
- Audio In/Out: 3.5mm and RCA interfaces
- Digital I/O: Optical and Coaxial SPDIF
- Control: Button matrix and display driver pins
Why Hackaday? This module is packed with potential for hardware mods, protocol hacks, and audio experiments. Whether you’re building a custom audio router, a wireless instrument pickup, or a Bluetooth-enabled vintage radio, the AC6951C offers a solid foundation.
Tags:
#Teardown #ReverseEngineering #BluetoothHack #AudioDSP #EmbeddedHacking #AC6951C #CustomFirmware #HardwareMod
Robert Manzke
typematrix
GaryGru
nedal_hamdan