Run micro stepper motor without driver | Arduino code 

Hi thanks a lot. i purchased some extremely tiny stepper on ebay, they are so tiny that they are sold 10 by 10, when looking closely their encloure seems to be made of thin sheet metal, and welded by pulse laser or very low voltage spot welding. im so impressed by these tiny devices. lool. your code works perfectly. thanks a lot. people always so lazy and use somebody else's code and libraries, and additional module boards to make stepper motors work. i can apreciate the simplicity and making use of things as they are. This way we directly see how the inner coils of the motor are enegized one after the other to produce the steps. the tiny stepper motor spins, it is so funny, i have great project ideas for these.

Each pin can only supply 40mA max but 20mA is recommended. Driving a stepper in this way, though a neat hack, will likely damage your chip. Especially if you run it for extended periods of time.

Great video. I wanted to get some basic understanding of a micro stepper motor, and this absolutely delivered. Thank you.

If anyones wondering if this will work for bigger motors. Yes it will. I was driving a NEMA 17 stepper motor off of my laptop with my nano. though you dont want to try higher speed as it will necessarily draw more power. i though risked it and the motor just stopped. dont know why....maybe a current limit feature on nano board. but nothing got damaged as reducing the speed motor started working again. Thanks for the video.

I don't know about the steppers being used here but my micro stepper motors have a coil resistance of 20 ohms. In this application that would mean a current draw though each pin of 250mA. That's way more than what the Arduino could supply or sink.

ah yes, ASMR and knowledge at the same time.

Very Nice explanation. Thanks for this video 👍🏻👍🏻👍🏻

I need to build a micro Pan tilt Camera. Can a code similar be programmed to make smooth and slow movement with this? I just need to motor 2 axes movement 90 degree limit 45 in direccion(half left, half right, half up and half down). I saw a micro motor with a tiny gear reducer but this approximation you have done here I think can work better. Thank you for sharing. Maybe you may share some info.

Even through the video the soldering smoke goes towards me

Hi, like the video, Ive been working on a stepper project and wanted to save on space, so this is perfect how ever is there a way to control the steps? like 20 steps forward/20 steps back-ward

Hi there, thanks a lot for your video. Do you think is it possible to run this program over an Attiny85 ?

is it possible to micro-stepping with tiny motor? such as 0.1 deg per step?

This is so cool! would it work if i use only the Attiny and not the whole Arduino?

Great video thanks, but I don’t undersand how it can works without ground wiring ? Impressive speed anyway !

Name of driver of Micro Stepper Motor ?

Hello. Please i want to run 32 steper motor of those kind. On a small project. Do i need to use for each it's own steper motor driver or i can just contrôle them with arduino if yes please tell me what i need to make them work. Thanks in advance.

You should at minimum put a protection diode across the coil

can i use the code to run on arduino uno?

Hmmm sweet, sweet fumes

its not working for me brother. Any clue what could be happening? i tried every possible combination with the wiring, and i used your code. I'm freaking out over this shit

How’s the torque for this motor? Will it rotate if there’s any resistance?

what is the stepping angle of this motor?

can we do this with arduino mini 3.3v board using micro stepper motor? and will it not hurt the board in any way? thanks

nice