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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.
@user156811
A flip() send a complete buffer over. I don't have code to send over a partial buffer over to the display at the moment.
A partial refresh is when you don't go through the entire process to change the pixels.
What does a change look like when nothing has changed? So if you run flip it will currently just flash the entire screen again. So if your on full refresh. Then it will blink a lot. If your on partial refresh. Then it will do nothing in terms of visible changes. But that's not good for the display.
So i made a video about what i've learned playing around with these displays. Not the best because i just wanted to get it done before the holidays. https://www.youtube.com/watch?v=MSgwCyRCyIk