Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - glayvin34

Pages: [1]
Website Questions / LED RGB clear common cathode seems to be backward
« on: June 19, 2012, 10:46:39 AM »
Hello, everyone.  I got some of these things for a project:
And I clicked on the wiring example and set up my Arduino Uno like it shows in the image, uploaded the provided code, and nothing happened.
I messed with it to try and figure out what was wrong and it appears that hooking up the LED backwards is the only way to make it light up.  I.e., the GND pin of the Arduino connects to the 1, 3, or 4 pin of the LED and the output pin of the Arduino connects to the 2 pin of the LED.  I don't really know a whole lot about electronics, but this seems to prevent me from controlling the LED to change color since it has only one input from the Arduino. 
Can someone let me know what I'm doing wrong here?
Pages: [1]