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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.
@Wilberforce
The Bitrate should be getting set:
https://github.com/espruino/Espruino/blob/master/targets/esp32/jshardwareSpi.c#L120
https://esp-idf.readthedocs.io/en/v2.0/api/peripherals/spi_master.html