I think realistically for vibration motors you'll need something to increase the power output. I'd suggest adding one FET (or transistor) per motor. This may help: http://www.espruino.com/mosfets
But basically:
connect the FET 'source' to GND
connect the vibration motor between VCC and the FET's 'drain'
connect the FET's 'gate' to an Espruino IO pin
How long it lasts really depends on your motor, but with a CR2032 it won't be a long time. They hate large power draw, and running two motors are once might be too much.
You could however use a lithium ion battery with the MDBT42Q breakout (as it has a voltage regulator) and that'd be fine. You can get 'mini phone charger' things about the size of a keyring that have a lithium battery and charger and are dead cheap, so potentially that could be an option.
Either that or you can buy LI2032 (lithium ion CR2032-size cells) that'd work great
Can I power the MDBT42Q module(not the breakout board) with a 3.7v lipo and a voltage regulator? I also edited my original post and added some more info on how the motors will be used, so just a heads-up.
Thanks!
EDIT: will I need any passive components for the mosfets?
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I think realistically for vibration motors you'll need something to increase the power output. I'd suggest adding one FET (or transistor) per motor. This may help: http://www.espruino.com/mosfets
But basically:
How long it lasts really depends on your motor, but with a CR2032 it won't be a long time. They hate large power draw, and running two motors are once might be too much.
You could however use a lithium ion battery with the MDBT42Q breakout (as it has a voltage regulator) and that'd be fine. You can get 'mini phone charger' things about the size of a keyring that have a lithium battery and charger and are dead cheap, so potentially that could be an option.
Either that or you can buy LI2032 (lithium ion CR2032-size cells) that'd work great