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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.
@fanoush
or in fact nrf52840 (unlike 52832) can directly map SPI flash to CPU memory and read it transparently like internal flash but it is currently not used and may not improve things much as the interpreter can do it on its own quite easily too when needed