The original Protothrottle Receiver was able to control an ESC, but it just output throttle value as is, no manipulation. In some implementations this could cause abrupt changes in speed. So I added a new ESC mode, ‘PHYSICS’. This allows a standard center off ESC to now have a programmable acceleration and deceleration value. I also added a brake function that you can set to any DCC function code on the PT. This will allow you to drive a DCC decoder for the sound and lights, but actually control the motor with an ESC. There still isn’t any BEMF to feed into the decoder but I’m thinking on that one.