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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.
@maze1980
I'd say even two motors with 10mA are too much and will drain a CR2032 battery really fast. I'd add a capacitor and a diode in parallel to each motor (over voltage/inverse voltage protection).
However I'd check the motors first, do they have the right speed and power at the planned voltage, or do you need more power/a higher voltage and gears...