Let go of seven items from time to time and counts further. the radio does not read the counterparts in hex in turn. For a long time I could not understand what's going on, and finally I came up with something like that. I can add from my thrones how to enter the position (time) of the song. Admittedly, I've dealt with the emulator myself and now it works as expected but thanks for placing the source code. void setup() transmit(t3,6) //give the HU some info about the current disk Next up is modifying the Serial.write() routine in HardwareSerial to do the same as tx(). It shouldn't be hard to replicate to rest of the protocol once I figured the 9-bit communications out. Head unit to CD-changer: 'Load Disk 1, Track 2' (after pressing 'Next Track')ĬD-changer to Head unit: 'Loaded Disk 1, Track 2' The Aux input stays off when no 'CD' is playing. I need to convince the head unit that it's talking to a CD-changer for that to work. I want to use the buttons on the head unit to control the music on my Android phone via Bluetooth (using the guts of a Bluetooth multimedia keyboard and the Arduino as a bridge). Is it possible to do 9-databit serial send/receive with the Arduino via HardwareSerial or SoftwareSerial? I've found several modified HardwareSerial libraries so far that allow some control over the databits, but none of them seem to be able to send and receive 9 bits of data. The command structure is pretty straightforward. It's a 9-databit, 1 stopbit, 9800 baud (4800 during startup) RS232 signal without parity. I sniffed the protocol with a logic analyzer and figured it all out.

I want to use my Arduino as a CD-changer emulator for my car stereo (Blaupunkt Travelpilot DX-R52).

Hard disk serial number changer mega