Espruino and Bluetooth should be fine battery-wise, but it's the serial console that'll get you. That could take as much as 4mA.
@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.
Espruino and Bluetooth should be fine battery-wise, but it's the serial console that'll get you. That could take as much as 4mA.