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I thought I had a board issue that didn't show up until a specific word was printed... See? Watch the horizontal line of the "H". (Obvious Plug!)
Turns out I flipped two of the LEDs, 35 and 51, so they turn on opposite of each other.

Don't mind the solder mess.
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any reason why you chose to use both an ESP8266 and an Atmega MCU ? pretty sure the ESP8266 could handle both tasks :)
Hey Sean, nice project! What are the dimensions of the board / will it fit on a 10x10cm2 board? - doesn't look like it, but had to ask. I have to remix this idea for this platform at one point ;)
Hey,
Its actually 148 x 104mm. Could be shrunken down, but the led Matrix would have to shrink, and thats a lot of work. Haha
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Its great I really like it for https://www.youtube.com/