I'm new to the Arduino Community and therefore also a bit lost. To get started I already spend a lot of hours researching this forum and getting some basic information but I'm still not sure which one to pick.
Anyway my question:
My power source is 24 V and max 2 A. Because of that I want to use a stepper motor (NEMA 17; 24 V; about 1 A) to get 0,1 Nm or more. Which motor shield is the best fitting?
I would be awesome if there is a good library for it and also (not necessary) that the Arduino Uno gets the power supply from the shield as well, so I don't need an additional 5 v power supply.
The DRV8825 is a good choice for driving a bipolar stepper at 24V and 1A. I link to Pololu because the page has lots of information on the driver's use, but they can be found on Ebay for less money. The 5V power for the driver can be from the Arduino 5V.
thesammm:
My power source is 24 V and max 2 A. Because of that I want to use a stepper motor (NEMA 17; 24 V; about 1 A) to get 0,1 Nm or more.
You certainly don't want a 24V stepper, whatever that is.
Steppers are rated by current, winding resistance and inductance, steps per rotation.
A stepper driver like the DRV8825 can go up to about 1.5A, and NEMA17 motors are around 5W or so, so
about 2 ohms, 1.5A is the motor rating you'd likely see.
Stepper drivers take less current from the supply than they give to the motor windings as they are
switchmode (effectively buck converters).
First of all thank you to both of you for your quick answers!
I will check both tomorrow and will report my findings and will probably have some follow up questions.