Pinout for the 1.2in 8x8 HT16K33 board

[emily1]

I bought a few of these planning to build my own LED matrix on them: https://www.adafruit.com/product/1048

They did not come with any documentation and I've been unable to find anything on that specific board (the other HT16K33 boards do have docs floating around, but I have several of these already).

Can you point me toward a pinout for this board? Thanks!

[adafruit_support_mike]

There's a schematic on the Downloads page of the tutorial:

https://learn.adafruit.com/adafruit-led ... /downloads

[emily1]

There is this:


How do the pin numbers on the LED matrix shown here relate to the 16 unlabeled pins on the board?

[adafruit_support_mike]

The numbers on the schematic match the pinout of the LED matrices they're made for:

https://cdn-shop.adafruit.com/datasheet ... 1XWB-Y.pdf

The solid dot indicates the position of pin 1, and the numbers advance counterclockwise as is standard for chip pin numbering.

If you're looking for a more general HT16K33 breakout, this is the one:

https://www.adafruit.com/product/1427