Traffic Light

I saw a small, cheap traffic light toy in Spain. I figured it’d make a fun desk ornament. And then I realised it’d juuuust fit an ESP8266 module inside it.

I designed a small PCB with a breakoff programming harness to fit inside it, and to take a USB jack in the base for power.

You can watch it do an over the air update or change state based on mqtt events

So what is it?

Board

Schematic

License

This project is licensed under the The TAPR Open Hardware License.