After the success of our first project we wanted to try building the traffic lights detailed on the OCR resource sheet here 

After helping Philip solder the components onto a prototype circuit board we connected it up to the GPIO breakout board. 

I showed Philip how to write the code to make one of the lights flash on and off.  He was then challenged to find a way of making the three LEDs show the correct traffic light sequence.

Leave a Reply

Your email address will not be published. Required fields are marked *