Chassis

LEDs and LDRs

Today the LEDs and LDRs were extended from the top to the bottom of the chassis so that the LDRs could read the line. The LDRs were covered in black paper and plastic straw to block out any ambient light so that the LDRs would only detect the light from the LEDs. The LEDs and LDRs were held straight by electrical tape to prevent a short circuit.

Problems

The LEDs caused calibration problems with the LDRs because the values being read kept moving rapidly between two extremes. It was decided that it would be better to just use LDRs and calibrate the potentiometers and the code to suit the two differences in light.