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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.
@user7029
Probably sending data has limitation. Could be interesting to check on how long between each transmitted byte to calc the effective speed. While operating the HW from JS give flexibility, it seems that predefined "HW operating scheme" modules (made in C) could improve performance for people going the performance/speed path. If there would be a way to use JavaScript to implement things like this: http://www.wolinlabs.com/blog/stm32f4.adc.dsp.dac.html would be an achievement!