4tronix bitbot robot for bbc microbit ultrasonic distance sensors 4tronix bitsonp these ultrasonic distance sensors bring more functionality to your bitbot the sensor is ready soldered just attach to your bitbot with the screws provided and off you go when fitted you just use microsoft pxt or micropython with some awkward code to read the distance to an obstacle then program your bitbot to avoid it both ping and echo signals are on the same pin pin 15 this version has a sock