# BBC Microbit; Motor control

**URL:** <https://forums.pimoroni.com/t/bbc-microbit-motor-control/3886>\
**Category:** BBC Micro:Bit\
**Created:** [January 28, 2017, 7:56pm UTC](https://forums.pimoroni.com/t/bbc-microbit-motor-control/3886 "2017-01-28T19:56:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![watson](https://avatars.discourse-cdn.com/v4/letter/w/ce73a5/32.png) [@watson](https://forums.pimoroni.com/u/watson)\
**Post date:** [January 28, 2017, 7:56pm UTC](https://forums.pimoroni.com/t/bbc-microbit-motor-control/3886/1 "2017-01-28T19:56:54Z")

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Hi! I’m designing a model RC plane for the BBC microbit as part of my DT alevel project; I have designed a circuit using an L293D H-bridge IC, controlling two motors as well as two servos. The Circuit works however for the plane to gain enough momentum to fly a larger velocity is needed and the motors I am using fail to meet this requirement. I have tried Brushless motors (from a quadcopter build which when used with their flight controller are able to reach a high RPM (capable of flight) as well as brushed motors. When testing the brushless motors with the Microbit the only way I could increase their speed was by adding more batteries to power it  
This adjusted the speed gradually but not to a flight worthy amount. As a result I am unsure whether to just by a RC plane motor and attempt to use the battery for that to power my circuit;  
[https://www.amazon.co.uk/Brushless-Motor-Propeller-300-800g-Airplanes/dp/6040387963/ref=pd\_vtph\_21\_tr\_t\_2?\_encoding=UTF8&psc=1&refRID=YX0N3STTZM0WJ71J6P0D](https://www.amazon.co.uk/Brushless-Motor-Propeller-300-800g-Airplanes/dp/6040387963/ref=pd_vtph_21_tr_t_2?_encoding=UTF8&psc=1&refRID=YX0N3STTZM0WJ71J6P0D)  
or if there is a way to adjust the max velocity setting/power outage on the microbit then I’m all ears. Thanks for reading!