It'll be fine, as long as you don't wire it up backwards or anything :) It should only draw max ~30mA, and usually less if it's entered sleep mode.
@Gordon started
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.
It'll be fine, as long as you don't wire it up backwards or anything :) It should only draw max ~30mA, and usually less if it's entered sleep mode.