[ScorpiusWireless]

   

Here’s a mock up of what the Scorpius Carrera dongle will look like. A 6 wire RJ12 plug and wire is cut and soldered to MPD. 4 wires go to our 4 pin digital port and 2 wires vampire 5V off the Carrera Control Unit. 
The trade off with utilising the digital comms option over the analogue protocol is that we lose our OLED driver port. But we have a work around for that.

There is 2 uses for this dongle.
1. Nitrous system. Controller controls car direct but also sends controller data to the CU to maintain compatibility in regard to apps and ti get that important lane change signal to the rails via the CU. 
2. Use Scorpius controller only to connect wirelessly to the Carrera CU. 
The firmware for most of it is available from the Scorpius car decoder protocol firmware already complete. So for this product we need to reverse the Carrera controller code and send it to the 4 pin digital port. There is some information available online. Again it means working with the dreaded Manchester code.