Motors won't work

Other Hardware Motors, Mechanics, Power and CNC
1

Im trying the most basic motor circuit and I've tried with 3 different motors, admittedly bought from the same supplier in ebay

Code copied straight from the book, I think I have the circuit right. Photos of all attached

There is definitely some power there, if I replace the motor with an LED it lights up

The diagram calls for 2.2k resistor, I've used 2*1k instead as that's what I have

The diode band has rubbed off, but the band is to the left hand side of the circuit. I don't know much about what the diode is... That would be the issue? I'm clutching at straws as I am clueless

Any help much appreciated

2

Did you forget the photos?

Don't post pictures of text! Post code as text.
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3

Adding pics

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4

_20190719_223703.JPG
_20190719_223703.JPG5320×2794 1.83 MB

Hope you aren’t trying to power a motor from the NANO 5v pin :frowning:

Oh yes you are ???

Don’t even try!

5

That's not terribly helpful. Please draw a circuit diagram and then post a picture of the drawing.

6

Im trying the most basic motor circuit

Which circuit? What book? Post a link. Post links to the motor product pages.

If the little black thing in the photo is a transistor intended to switch the motor power, it is almost certainly the wrong type.

7

kiki_soton:
Im trying the most basic motor circuit and I've tried with 3 different motors, admittedly bought from the same supplier in ebay

Code copied straight from the book, I think I have the circuit right. Photos of all attached

What book?

There is definitely some power there, if I replace the motor with an LED it lights up

The diagram calls for 2.2k resistor, I've used 2*1k instead as that's what I have

Totally wrong. 150 ohms might work. Not impressed by this book! Motors need lots of current
(0.5 to 2A is common range for small motors) and the transistor needs at least 5% of that current to the base to control the load.

The diode band has rubbed off, but the band is to the left hand side of the circuit. I don't know much about what the diode is... That would be the issue? I'm clutching at straws as I am clueless

Any help much appreciated

The nature of the diode is pretty irrelevant so long as it can handle the current without failing. The transistor however must have a high current rating and a low saturation voltage.