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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.
@DrAzzy
There is no builtin switch on the Espruino board. You could switch the parts on and off with MOSFETs though (SOT23 MOSFETs can be soldered into the prototyping area).
In the case of the CC3k, the VBEN pin might let you turn it off. Not sure whether it's just for resetting the part, or whether it actually turns it off.
When Espruino goes into deepsleep, if there are attached devices, they will continue sucking power at whatever rate they normally do when not told to do anything else. Deepsleep does not turn off power to any of the power pins.