Nootropic RGB Matrix Backpack for 16x32 and 32x32 Matrix v2 updated 01-23 finally we have some that

finally we have some that have a true I2C interface for easy reading

Adafruit wrote up a nice tutorial with wiring diagrams

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

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

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

Nootropic RGB Matrix Backpack for 16x32 and 32x32 Matrix v2 updated 01-23 finally we have some thatThe 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