https://medium.com/@simon_prickett/raspberry-pi-coding-in-go-traffic-lights-559bc761fa07

I’ve been learning the Go programming language recently. As an exercise, I decided to revisit a past article that looked at working with traffic lights on the Raspberry Pi in Python in order to rewrite it in Go. To make this a standalone guide, there will be some re-use of content from the prior article here.

To try this out, you will need the following (links here mostly go to Adafruit, UK customers may want to consider Pimoroni as a UK based alternative, Amazon has most if not all of this stuff too):