stepper motor and stuff

you see where it says Step Input. you put a pulse on there and it advances one step (equal to, let's say, 3.9 degrees) so, to control speed, you just put out more or fewer pulses. easy peasy.

>>926607
>Hi diynosaurs, i'm actually working on a project that requires the use of a stepper motor, in particular i need to control the speed of the motor using an arduino uno. I've read that stepper motors need a dedicated driver to work and i was wondering if i need a particular driver or just the cheapest-random one.
You do need a "stepper" motor driver, or a motor driver board that can operate a stepper motor. There are also "brushless" (or BLDC) motors and DC motors, and those need different driver circuits.

If the motor is smaller and not put under much mechanical load, just any stepper motor driver will prolly work okay. If the motor is larger then you might want to get one that can put out some current. Can you show the motor or link to where you bought it?

If the motor is a nema 17 or a smaller nema 23, I tend to use a Sainsmart TB6560 1-axis driver.

The 3D printers just use little chip drivers (with no heatsinks) but these occasionally fail too. But Sainsmart has those also if you wanna.

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>>926607
which type of stepper motor do you have? they are controlled in different ways (one has 2 coils, other has 4).

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>>926692
>>926718

That's the motor i'm trying to use. It was in a printer that i took apart, unfortunately i didn't know how a stepper motor works and i didn't save the driver. I don't know exactly if that has 2 or 4 coils, i guess 4. The connector has 6 pins but the cable that came with it uses only 4 of them, if that can help

>>926607
"pololu" makes good stepper drivers that are arduino uno compatible. also depending on your project, "protoneer" might have a shield that could do most things f the work for you.