Hey guys, I have what should hopefully be a relatively simple question here.
I recently purchased an LED Matrix from OddWires. I believe that it’s the same LED Matrix that is found on Adafruit. What I would like to do is just simply turn the entire matrix on and off with the Arduino. I’m not trying to make any fancy patterns, just all the LEDs on and all the LEDs off. I’ve tried wiring it up multiple different ways with no luck. What was closest to working was like is shown in the picture on adafruit. Here’s a simple wiring diagram that I drew up:
Obviously, the 3.3v bar will eventually be a digital pin so I can control when it’s on and when it’s off.
It never really worked how I would like. It seems that some LEDs were not getting as much power as others and were very dim. You can clearly see that here:
If anyone has any ideas on how I could make it work properly, so it looks like it does in the Adafruit image like here:
Please let me know. It would be greatly appreciated. Thanks!