README.md
View this project on CADLAB.io.

BlueBus

This project aims to create a Bluetooth interface for vehicles equipped with
the BMW IBus. It supports A2DP, AVRCP and the HFP protocols. AVRCP Metadata
will be displayed on all supported devices along with full integration with the
vehicle to control playback. Additional functionality will be added to allow users
access to their vehicles service data and module information. Additional support 
has been added to emulate the factory telephone system.

Features


Firmware upgradable
Full integration with CD53 / BoardMonitor / Multi-Information Display
User Configurable
Natively DSP Compatible
Emulation of the OE telephone system


Hardware


PIC24FJ1024GA606 16-bit MCU
BC127 Bluetooth Module
Melexis TH3122.4 LIN Transceiver
WM8804 low jitter S/PDIF decoder
PAM8406 2-watt amplifier
PCM5122 Line-Level DAC / 2.1v RMS / 113 dB SNR
25LC1024 1MB EEPROM
FT232RL USB to UART converter
TMUX154E SPDT IC Switch to change the FT232RL source from MCU to BC127
Littleblock 750mA replaceable fuse on input side
Littleblock 500mA fuse on 3.3v rail to prevent error conditions from sinking current