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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
Hi,
Realistically there will be no difference for you between Puck.js on BLE 4.2 or 5 then. It's not like 4.2 will become obsolete, as BLE is just a superset of what's in BLE 4.2