PHYSICS 420 PRESENTATION

Programming

The BX-35 microcontroller was programmed in a higher-level language BasicX. There is extensive documentation provided by NetMedia for programming, which can be found here.

The outline for the program follows pseudo-code similar to this:
Align ultrasonic servo
Calibrate ultrasonic sensor

Do
  Begin driving the robot forward
  Execute ultrasonic servo function
  Execute magnetic detection function
   Read magnetic detection voltage value
     If magnetic detection value is greater than or equal to threshold value
        Stop robot
        Blink LED 10 times /Can be replaced with marking system, coordinates, flags, markers/
 Execute ultrasonic detection function
  Read ultrasonic detection voltage value
      If ultrasonic detection value is greater than or equal to threshold value
        Stop robot
        Rotate steering servo 45degrees
        Drive robot forward for 20 seconds /In order to execute 180degree turn/
        Drive robot forward
       Turn counter gains 1
Loop

The full program for the robot can be viewed here.