====== TODO ======

  * [[encoded-wheel]]
  * [[obstacle-detector]]
  * [[sharp-ir-meter]]
  * [[power-key]]
  * [[quad-display]]
  * [[accelerometer]]
  * [[gyro]]
  * [[magnetometer]]
  * [[dht11]]
  * [[tilt-sensor]]
  * [[rfid-nfc]]
  * [[pid-controller]]
  * [[radar]]
  * [[js:ir-remote-controller]]
  * [[js:pid]]
  * [[js:proximity]]