Over the last couple of sessions we’ve been using Python to write some programs for the Raspberry Pi.

Last week we wrote some easy Hello World type programs and today we finally started to use the Raspberry Pi GPIO pins.

We learned how to set up pins as outputs or inputs and how to use these pins to light up a LED or sound a buzzer and how to read from an input pin.

The group then used what we learned to make a simple traffic light.

Our breadboard with LEDS, buzzers and a switch

Here are my slides from the last two sessions Raspberry Pi programs