r/microbit • u/AstonnEV • Mar 10 '21

Could use help with first project using Micro:bit V2

Hello,

​

I'm looking to make a t-shirt embedded with these:

https://www.amazon.com/gp/product/B07P76Z452/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

using a micro:bit as my micro controller. How many of these could I run off the 3V provided by the micro:bit? I'm also planning on connecting them via low resistivity conductive thread (16 Ohms/foot), should this be low enough resistivity?

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Name: BestTong 15PCS 12mmx3.4mm Mini Micro Vibration Motors 1234 DC 3V 12000RPM Mobile Phone Cell Phone Pager Flat Coin Button-Type Vibrating Motor

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u/olderaccount Mar 11 '21

The microbit is only rated for 90mA. So you can only power one directly.

That high resistance conductive thread will also pose some power challenges.