Raspberry Pi Coding with Node RED: Traffic Lights

Raspberry Pi Visual Programming with Node RED and Low Voltage Labs Traffic Lights. I take a look at using the Node RED visual programming environment on a Raspberry Pi to control some LEDs. Node RED flow source code: https://github.com/simonprickett/raspberry-pi-traffic-lights-node-red Traffic Light LEDs can be bought from Low Voltage Labs: http://lowvoltagelabs.com/products/pi-traffic/ Installing a current version of Node.js on Raspbian Stretch Lite is covered in my Medium article here: https://medium.com/coinmonks/raspberry-pi-coding-with-node-js-traffic-lights-ad3fe36d3592