Instructables

Safety Stoplight: The Easy, Arduino-powered, voltage warning light

Picture of Safety Stoplight: The Easy, Arduino-powered, voltage warning light
DSC00630.JPG
DSC00631.JPG
DSC00632.JPG
DSC00633.JPG
DSC00634.JPG
DSC00635.JPG
DSC00636.JPG
DSC00640.JPG
DSC00641.JPG
DSC00642.JPG
DSC00643.JPG
DSC00644.JPG
DSC00645.JPG
DSC00646.JPG
DSC00647.JPG
DSC00650.JPG
DSC00651.JPG
DSC00652.JPG
DSC00653.JPG
DSC00654.JPG
This was a side project I completed during my time as Summer Undergraduate Laboratory Intern at the National Renewable Energy Lab. I highly recommend the program. (I did much cooler things than this, but those will be papers not Instructables :)

We worked with some occasionally high voltage equipment that required handling from time to time. We built the stoplight as a way of tracking the voltage and staying out of the way when the system was hot.

Perhaps the best  we had was to idea have all three lights flash when there was no signal at all. That way you're not deceived by disconnected cables.



I suppose this project owes big debt of inspiration to mkanoap's network stoplight though this project differs in the simplicity of the components used in the assembly. Thanks to the friendly components of Mouser electronics Arduino Tinker kit, it was built with almost no soldering.

Bill of Materials:
Chinese Stoplight
Replacement lamps  (optional, if you want to get rid of the blinking, we used pricey LED ones so we didn't have heat issues)
Arduino Uno
TinkerKit Sensor Shield
TinkerKit Relay Module x 3 (one for each light)
DC Power Supply (we used a RS-15-15 which we dialed down to 12V)
Some small screws for mounting components (optional)
Small protoboard
A couple resistors (depends on application)
Wire
 
Remove these adsRemove these ads by Signing Up

Step 1: The Guts

Picture of The Guts
DSC00654.JPG
DSC00647.JPG
DSC00636.JPG


The lights that come standard blinked and so we replaced them with cool (i.e. not hot) LED lamps.

I don't suppose I need to go much through the wiring. It should be pretty straight forward
Pro

Get More Out of Instructables

Already have an Account?

close

PDF Downloads
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.

Upgrade to Pro today!