A couple of weeks ago, I reviewed the RyanTeck TrafficHAT and gave it a solid 9/10. I’m pleased to say that it is now available to purchase. You can get hold of the HAT for under £10 delivered direct from RyanTeck or from The Pi Hut. If you’re interested in getting to know about electronics and controlling the real world from your Pi B+, A+ or Pi 2, this is an excellent introduction. It comes in kit form so you get to learn how to solder as well. It’s a great learning tool and I thoroughly recommend it.