Nootropic RGB Matrix Backpack for 16x32 and 32x32 Matrix v2 updated 01-23 there's 5 spots for optional

there's 5 spots for optional slim tactile switches wired to five GPIOs

and seems to work OK on Uno but may not work on other Arduinos

Lets check out these specs again:

There is no support for PWM control of the backlight at this time

Prior to June 23

Nootropic RGB Matrix Backpack for 16x32 and 32x32 Matrix v2 updated 01-23 there's 5 spots for optionalThe RGB Matrix Backpack is a small board that connects to the back of an RGB LED matrix panel. Compatible panels include: Adafruit 16x32 RGB LED matrix panel Adafruit 32x32 RGB LED matrix panel (6mm pitch) It is a very convenient way to control these awesome panels. The new "v2" version of this board works on both 16x32 and 32x32 panels! The board is simply a small Arduino. You can easily program the board using the Arduino IDE. As you can see from