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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.
@Gordon
Does anyone know anything about the accuracy of crystals? I'm wondering whether 32kHz crystals are actually more accurate than 4Mhz ones... Having looked at Farnell it seems like the majority of them hover around the 20 parts per million range, but that sounds a bit strange to me.
The reason I'm looking into this is the Pico's timekeeping. At the moment it uses its internal low-speed oscillator for timekeeping, which seems to have a tolerance of around 100,000 parts per million :)
I'm considering going back to using the original (much more simple) timekeeping that uses the high speed oscillator, and then only using the low-speed oscillator to wake from Deep Sleep. It'd mean that the Pico's timekeeping would be properly accurate as long as it wasn't in Deep Sleep, and it might also mean I could do some calibration too.