yeah of course i agree about the RPM sensor thing, was just illustrating the extreme and the ambiguity. I also realise that the motor rules and the sensor wire includes a pin for a temp sensor, lol.

The concern is this. Some speedies can now "record" various important things about the performance and operation of your vehicle, and a few of these things are mentioned by name as not allowed by the rules. eg. motor speed, wheel speed (derived from motor speed) and temperature. You can probably safely add battery voltage, current, mAh and look forward a bit to things like motor acceleration/deceleration rates which can be used as forms of traction control (again specifically banned), the throttle servo is plugged into the speedy so can record throttle/brake position there's lots of useful things to help you make your next run better than the last. Add a decent serial eeprom, a surface mount 2 axis g-force sensor and we're all sitting around like v8 supercar teams watching wiggly lines on a laptop...

It is all very useful stuff, i use the Novak logger during practice for exactly these kinds of things especially dialing in a Tekin setup for a track etc. Being able to see 4 things: throttle/brake, current, rpm and motor temp helps a lot. All these things the speedy has access to and can potentially record.

This is the second part of the ESC software animal, the first part has already been unleashed and blindsided rulemakers hopefully this one doesn't go down the same path. Rules need to be made clearer i think.

I'd actually like to see some motor related things allowed to be logged via speedy, then all mfgr's can include those features and nothing else. eg. RPM, voltage, current, temp.