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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Owen
Something that could have caused it. It was all wired up correctly and working in the PIN stated above and while turned on I unplugged the matrix GND/5V from Espruino and plugged them directly into a 5v 0.5A wall adaptor .
Now I've gone right back to basics and just trying to get it to work again on Espriuno.
I don't power is the problem as I can power the matrix from either Arduino/Espruino/5v adaptor including the controller it's self. So it has to be something to do with the B15 data out? But if so then why does the WS2812 strip work Ok on B15?
It's is becoming a real mystery.