Lighting up a 4 way road crossing

Here is a quick DIY of a 4 way road crossing to show how this works.  


DIY - Wiring Solution

This is a DIY project.  If you are looking for a plug and play product, please be patient, we are developing some.  In the meantime, if you are a DIY'er, or just can't wait to try this out, then please keep reading.

Required tools:   Soldering Iron

Required skills:  Soldering, technical wiring skills

How we dIY'd



We use WS2812B lights because they are addressable LED's.  We serially wire them.  This means that if one pixel has a fault, all pixels after it will fault.  This is good because it becomes easy to identify where a problem lies.  

Wire 1


We wire the arduino to the first lighting strip with 12-14 gauge wire.   Our solution requires 3 wires here (we used black, red and blue) 

Wire 2


Wiring between the individual lights can be as long or a short as you need them to be.  We use a very thin wire to connect them.  For our solution, we use only 4 wires (black, red, yellow and green)

Wiring the Arduino


We wired our arduino - power and ground, and Data In to pin 3.

Soldering to the T-connector


Our inelegant DIY solution solders the 4 wires to a t-connector as shown.  We ended our wires into a plastic connector to make connecting each individual light/signal easier.

Soldering to the pixels


As you can see, our 4 wires connected to 5v, ground, data in and data out.  (In this double 3 traffic light,  we  soldered to data out on the reverse side.  


*We take no responsibility for the outcome of this project due to soldering skills, or technical know-how*