- PhotoTransistors are placed under the lanes and are pulled down at the sensor.
- All sensors go into comparators that are comparing the voltage of the Potentiometer.
- The out put of the comparators are pulled up and fed into the the arduino nano every.
- The starting hall effect sensor is placed on the end of the electro magnet.
- That sensor is plugged into the phone cable.
- The arduino is running PORTRead.ino which is reading the virtual port and outputted into the serial buffer.
- PORT reading is simply reading 8 pins at the same time.
- VPORT is the chip on the nano every making reading the port a one cycle operation (it go burrr).
- Reads the buffer and calculates if the gate has stared or if the car has passed over the line.
- Displays the information on the hdmi output.