Well.. I found the problem W/ RGB LED/products/arduino/b/blog/posts/well-i-found-the-problem-w-rgb-ledI was working on a project for my UNO that would randomly fade in and out the RGB and make different colors.. After troubleshooting.. I find that the green portion of the RGB LED is not working.. I tested it with a pretty well used 3.3 v watch batteren-USTelligent Community 12RE: Well.. I found the problem W/ RGB LEDhttps://community.element14.com/products/arduino/b/blog/posts/well-i-found-the-problem-w-rgb-ledFri, 27 Mar 2015 14:33:05 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:08fc162a-16f0-4b87-b597-a4b569d54679Robert Peter Oakes0<p>It could also be that you dont have enough volts for the green LED, there is some variance between models from 2V up to in excess of 3.2V so as your using a 3V3 watch battery it may well be the issue</p><img src="https://community.element14.com/aggbug?PostID=20298&AppID=145&AppType=Weblog&ContentType=0" width="1" height="1">RE: Well.. I found the problem W/ RGB LEDhttps://community.element14.com/products/arduino/b/blog/posts/well-i-found-the-problem-w-rgb-ledFri, 27 Mar 2015 10:41:17 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:08fc162a-16f0-4b87-b597-a4b569d54679neilk1<p><a class="jive-link-profile-small jiveTT-hover-user" href="https://www.element14.com/community/people/mikejn1">mikejn1</a> I&#39;m in UK and find eBay is a fantastic source of components at very reasonable prices - I got all my LEDs, including RGB ones from suppliers on eBay.</p><img src="https://community.element14.com/aggbug?PostID=20298&AppID=145&AppType=Weblog&ContentType=0" width="1" height="1">RE: Well.. I found the problem W/ RGB LEDhttps://community.element14.com/products/arduino/b/blog/posts/well-i-found-the-problem-w-rgb-ledFri, 27 Mar 2015 03:31:34 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:08fc162a-16f0-4b87-b597-a4b569d54679ejohnfel1<p>Sorry to hear, I had a friend that spent a week trying to find out why his RGD LED wasn&#39;t working... he was sure it was his code, and even though he eventually figured out he had damaged the LED, he also discovered that it was common anode LED and not a common cathode as he thought it was.</p><img src="https://community.element14.com/aggbug?PostID=20298&AppID=145&AppType=Weblog&ContentType=0" width="1" height="1">