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Topic: Can't control a motor from pwm port (Read 506 times) previous topic - next topic

smaso

Hi all, I've a motor I should use for a little project, but I don't know how to work with it:
- tried to power it from a usb port of my pc, and it works
- tried to power it from the 5v pin on my arduino uno and it works
- tried to power it from a pwm port, but it doesn't work

I don't know how much current it drains (also I don't know how to measure it), how can I make it work with a pwm port?

Sorry if my explanation is confused or something.

kenwood120s

[gumby]I've got my head stuck in the cupboard[/gumby]

TomGeorge

#2
Sep 10, 2017, 03:54 pm Last Edit: Sep 10, 2017, 03:55 pm by TomGeorge
Hi,
You need to use a MOSFET to control  the motor current.


Tom.. :)
Everything runs on smoke, let the smoke out, it stops running....

smaso

Thank you for your fast answers, I have many transistor I can use (one from an stereo and many from a printer board), how can I tell if them are mosfets or normal transistors?

I've searched datasheets for all of them but I don't know what to look for.

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