Tried this out today, worked great. I ended up going with a Photon (by particle,) along with their Shield Shield, which has a voltage regulator, and a v->5v voltage translator built in, which seemed to work just as well as the ULNa to trigger the RGB amp.
April 19, at 3:
Gone are the days that you have to worry about silicone weather proofing splitting and breaking on you! These are sealed addressable 1 meter long 5V RGB LED .
A library that can be used to generate tones in the background using timers while your Arduino does other things.
RGB LED Matrix With an ESP I think these RGB LED Matrix displays are one of best displays you can get for your Arduino projects, they are incredibly bright and vivid and are actually pretty easy to use too!They can be used for displaying text, images or a combination of bot.
Or wish that you had an image sensor that wasn't limited to RGB - but could sense hue and saturation as well?
Warning: Due to the limitations of the Arduino library used in this tutorial, a 64x64 RGB LED matrix panel will not work with a standard Arduino (Arduino Uno with AtmegaP, etc). You will need a Teensy, Raspberry Pi, FPGA, or a development board that has a higher processing speed and memory. Try looking at the Resources and Going Further at the end of this tutorial for more information on.
I never used one before, but I think there are different ones with different cpus, right?
You've started modifying sketches, and played a bit with the onboard LED (or if you have an NG, an LED you added). The next step is to start adding onto the hardware component of the Arduino.
Now change your breadboard wiring so that it matches this schematic.