BSEE AS in electronics technology. Familiarity with serial 232 485 UART. Arduino fan. VW ftw
72.79 MHz remote transmitter bought without a receiver. Found an old sr-50 made by telex. Was able to adjust the frequency to match the transmitter. Used op amps to do some signal conditioning and run signal into arduino.
Take a voltage reading from steering wheel controls. Arduino reads and writes high on different pins to change tracks. Audio is streamed through Bluetooth receiver to OEM head unit.
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