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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.
@jugglingcats
Hi Gordon, thanks for the reply. I'll give those things a try and report back. Perhaps the ESP8266 issue is still present for ESP32, because I ran up the same code on my ESP32 dev board and it was noticeably slower than the Pico, but I haven't looked into whether this is a simple SPI clock frequency problem...