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RFSL/V-Signal Injector with Rear ONLY OPS Support (8Z0) This sketch adds support for triggering the 193 OPS (Optical Parking System) display from an installed 8Z0-919-283 PDC (Park Distance Control) Module on an Audi A2 (8Z) / Audi A4 (8E2/8E5) / Audi A6 (4B). You will need to add an interface to the K-Line from the Arduino TX and RX pins. You can use a STMicroelectronics E-L9637D IC for this, as it requires no additional external components. It's a SOIC8 package, but not too difficult to solder to a SOIC8 breakout board and then attach wires from there to the necessary pins on the Arduino board. For an Audi A3 (8P) / Audi R8 (42) / Audi TT (8J) with 8P0-919-283 you will need to do diagnostics over CAN (as they do not support K-Line). However you'd probably be better fitting the 8P0-919-475 module on these vehicles, as that module supports the OPS system natively. Note my understanding of the OPS CANBUS message format is not complete. What I know has been reverse engineered from the RNS-E firmware. If you can provide traces of the real message protocol on CANBUS IDs 0x497, 0x6DA and 0x67A it would be very helpful. Use V1 of our sketch for Dogwood Firmware 0280 / 0710. Use V3 for all subsequent firmwares. |
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