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- A mobile platform with
caterpillar tread
- 2 * bipolar stepper
motors
- 2 * bipolar stepper
motor driver circuits
- A relay circuit to
switch driver circuits' control pins
- PIC16F877
- ADC0809CCN
- 5 * Sharp GP2D12
infrared proximity sensors
- 4 MHz crystal
- 7805 DC voltage
regulator
- 2 * 12VDC batteries
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