Home made automatic BMX random start gate

A home project to play around with an Arduino and some woodworking. An automatic BMX start gate with:
* Electromagnetically controlled gate
* Standard UCI BMX start sequence including voice, lights and random delay
* Timing of the rider passing the control box via an ultrasonic sensor
* Speaking and display of the time
It can all be controlled by the rider and/or via a remote start button.
Full details and all resources open sourced at: github.com/gndean/bmx-start-gate