Firmware for little 2 wheels robocar

For now, it is heavily inspired by the work of Miguel Grinberg robot

• stabilize HC-SR04 values - both HW & SW side (advanced filtering)
• better power source (LiPO)
  • power distribution
• smoother movement in environment (if possible with single ultrasonic)
  • optionaly add more sensors for sides readings
• optical RPM measuring on motors
• better DC motors
• more customized chassis (3D printed)
• continuously document (probably on wiki)

• Arduino Duemilanove (older UNO) info
• HC-SR04 ultra sonic sensor datasheet
• Motor driver shield L293D (clone of adafruit version) + screw shield (too access pins taken by the motor driver board)
• cheap DC motors(TT) with plastic gearing