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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 - did you do an update to the firmware since Nodeconfg?
While there hasn't been a new 'numbered' release (they are all 2v04.xyz), there are pretty much daily builds at http://www.espruino.com/binaries/travis/master/ - if you were just using the Nodeconf firmware then it won't have
setHRMPowerin it, you'll have to update to a more recent version.