step by step engine : I NEED HELP

Hey :slight_smile:
I'm trying to do a program for drive a step by step engine with an arduino nano but I have no skills with coding and I feel it sooo hard ! I would like to can change the speed of the engine with a potentiometer and the direction with simple buttons. I don't know if it's feasible but I very need help !
(sorry i'm very bad in english thats not my languages =) )
Thanks if you can help me !

If you mean you want to use a stepper motor with an Arduino, you will need a special stepper motor driver or at least an H-bridge.

There are, of course, ready-made drivers that you can buy and there also are a lot of libraries available for them, so there is not that much coding knowledge required, but you have to at least understand the Arduino's programming language and by using other people's code, learning what command does what and changing the code for your needs, you will learn to program the Arduino in very little time.

You can also watch YouTube tutorials for controlling stepper motors with an Arduino and I'm sure there is at least one video explaining how to change the motor's direction with buttons and its speed with a potentiometer.

Good luck!

What size stepper motor?
Little one like 28BYJ-48 can be driven with just a ULN2003 and some resistors.

See these two links
https://www.arduino.cc/en/Reference/Stepper

2nd diagram here for 28YJ-48, which is a 5-wire motor.
https://www.arduino.cc/en/Reference/StepperUnipolarCircuit

http://www.tigoe.com/pcomp/code/circuits/motors/stepper-motors/

These links may help
Stepper Motor Basics
Simple Stepper Code

...R