Goals met
- Patch in Arduino to control H-Bridges
- Interpret remote control commands
- Use on-board audio amplifier
- Patch into switches to detect switch activity
Goals not met
- Understand ultrasonic protocol
- Toggle audio amplification circuit on and off
- Patch into circuit with out altering circuit board
Interpreting the switches
I used the analog inputs to detect voltage from the switches. Voltage is high on open switch and brought low when the switch contact is made. I suppose with appropriate resistors you could use the digital pins on your micro controller.
Patching into Movement
Very easy to mod. Just sever traces at the specified location and solder the eight wires onto the board and control with digital pins and read with analog pins
Final thoughts
CAUTION: USE A 5V REGULATOR when hooking up to an Arduino. The robot has excellent interior space for additional components. Sensors are interesting but limited; robot can detect users location via the ultrasonic remote. It would be easy to scab in additional sensors into the robot and possibly use a servo on the head part of the robot. Wheels could accommodate encoders. Great platform for getting started with robotics and a micro controller.
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