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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.
@user6837
It would hold the last bit you send, it doesn't have internal pwm so basically you do the pwm by sending the screen over and over, so the source comes with 256 tones for each color, but on the first lines I make the conversion to the amount of tones I would use, in this case I chose 2 to get the times I posted above.
Thnx for your response but I do not really understood the code you share wonder if you could explain a little more what it does, I am just beginning with Espruino and Javascript.