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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.
@Adam
to make things stranger~, I generated the pwm data directly from https://github.com/z3t0/Arduino-IRremote instead of recording it. The same data and frequency also work correctly on an Arduino mega 2560.
I'll try recording with the wifi. Maybe it's time to invest in a scope :)
thanks for all the help!