Originally Posted by waitwhat

My next project is to create a telemetry system that transmits telemetry data over wifi to my cloud storage for analysis just like an F1 car. The main sensor is going to be a 9DoF IMU that combines an accelerometer, gyroscope, and magnetometer to provide a high degree of 3d orientation. With the data I can calculate Angular Velocity, Acceleration, Linear Acceleration, and Gravitational vectors. With the ability to track the car so accurately in space I hope to be able to use telemetry data to extrapolate lap times and best lap delta calculation. The IMU also has an ambient air temp sensor so the cooling fan will turn on once the motor is x% over ambient instead of turning on at a set temp. Additionally, I might experiment with air pressure sensors to start doing some aero analysis too.

I also want to develop front brakes for my 2wd buggy that only actuate when the wheels are on the ground. That way I can still steer the car in the roll dimension while airborne. Please think about what I just said and realize that in onroad you only steer the car in the yaw dimension. Off-Road racers have a control in a dimension that On-Road racers don't.

I've had data logging on my rc cars since 2005. I prefer stand alone systems as they tend to be much more open source than the stuff integrated into the TX/RX.