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| I found this circuit in my files. I don't know where it came from, but it looks like I photocopied it from somewhere years ago. I have been told that it came from "The Robot Builder's Bonanza", by Gordan McComb. Anyway, I thought that it should be fairly useful, so I decided to post it here. The circuit is very simple and inexpensive. This is good thing because most commercial stepper motor controller ICs are quite expensive. This circuit is built from standard components and can easily be adapted to be controlled by a computer. If you use cheap surplus transistors and stepper motor, the price of the circuit can be kept to under $10. |
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| this is a very useful article about stepper motor. i just want to point out an italian tutorial about stepper motor: http://it.emcelettronica.com/motori-passo-passo-stepper-motor thank you! | ||
| i dont understand all that commnets 'cause there's alot question but no answer ?_?. this circuit needs more explaination.
i'm answering as i know,
1- this circuit can drive directly UNIPOLAR stepper but not BIPOLAR.
2- if you want to drive bipolar u need a "H bridge" circuit.
and my question;
how sould i wire the unipolar stepper to continuously, step by step move. ( when i wired it randomly it started to turn freakly)
(Editor's notes: As the comments form says, comments really aren't for asking questions. Try posting in the forum.) |
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| Hii i am using the inkjet printer stepper motor(12V and 0.9A) for controlling my robot. But recently my two motors are damaged. I am using Programmable Logic Controller(PLC) to control the this motor and giving the 12 V supply. is it because i give 2A current. Thanks in advance | ||
| Please, correct page name - this circuit is for unipolar stepper only. For bipolar stepper you will need H-bridge circuit. | ||
| can anyone plz tell me how to connect a 4-phase motor to the above circuit.that circuit is currently not working properly it is kind of dancing.Its funny but its true.plz reply fast with a wire configuration.Ineed to submit this project within 2 WEEKS time.The one who solves this problem will get my blessings.INSHA ALLAH!!! | ||
| Look at LSI's website url http://www.lsicsi.com/StepperDrivers.htm for a really inexpensive stepper motor controller LS7290. | ||
| I have a stepper motor from sanyo denki (Made in Japan). Its Type number is 103H8582-8044, 1.5A, 0.72 degrees. It is having 5 wires(Blue, Black, Red, Yellow, and Orange). I dont know the sequence to run it continuously. All the poles are working but i am not able to get the continuous rotation. Please help me soon. I need to finish my final year project in1 week. please reply soon. | ||
| Hi, kindly excuse me if this question Idiotic, can you please tell me the name of the stepper motor, so that i can get it and start doing this project. Moreover i have a HP Printer Stepper motor with 5 leads i dont know how to use that Stepper Motor in this project, can anyone please suggest me. Thanks | ||
| Does anyone know how to use the serial or com ports to control two of these circuits? I think I can figure out the programming part but the physical connection is a challenge. I think you should be able to switch it off, go forward or backward using serial port... Anyone knows? | ||
| require of rotation of clock wise and anti clockwise direction | ||
| I put one of these together and used 2N3055 transistors. The power transistors get _very_ hot. Do I need to change the resistor value when using these or something? | ||
| Hello I looking for a vary simple stepper motor controller. I making a label despiser it will be dive by a stepper motor the motor will pull out the about 5" by just one push s/w and each time you hit the s/w the label will move out and stop every 5". the paper waste will be raped up by the stepper motor it came out of a old printer 4 wire can you help me out | ||
| If the CD-Rom motor has only three wires, then would it be a stepper motor? Just reading this page http://www.flyelectric.ukgateway.net/cdrom.htm here, it would seem as if they arent stepper motors. Try opening broken flatbed scanners, printers, of floppy drives for a stepper motor i think... but i dont have any experience with this | ||
| Excuse me, im new at this(making my first motor). Can someone tell me if i can use this circuit to control the stepping motor at 3 different frequencies. | ||
| Thanks for posting this circuit! I was looking for a cheap, simple stepper driver and this is perfect for my needs. I just tried it on a breadboard and manually stepped through a couple of revolutions forward and back. All of the parts for four of these was less than $15 from digikey. Thanks again! | ||
| can anyone tell me how to connect the 5 wire of stepper motor ......i just couldn`t make out how to connect these wire to voltage supply......these are of diffrent colours......in which combination these are to be connected to power supply? | ||
| i have project to cotroll a gate in fluid flow by stepper motor,i want to know about which steeper motor is suitable for me .can any other suggetion give me please? | ||
| SOMEONE asked how it adjusts; looks to me like it's obvious, you have 2 + leads and 3 grounds! all you do is put in a couple of potentiometers to control what goes through the circuit. | ||
| useful for making rotation on toroid coil winding machine that can use a small bicycle wheel for example to put wire on to dispense inward to toroid. | ||
| I am need schematic for computer to make motor stepper have take regret to university class with final thesis. Please give me schematic parts layout and all of your time because I am lazy and can't do the research myself!!! | ||
| awsome circuit...while building it jus be careful with the pin connections because there can be loss due to wrong soldering and JK f/f wont work properly... | ||
| Are there any components in the circuit that can be adjusted? in order to gain the output voltage, because I only got 0.37V but I need 1.7V output to get the desired torque of the stepper. | ||
| hi, im new to this stuff . I have a cdrom motor with 3 input lines , im not sure how to connect the upper circuit to this . Can anyone help me in this case as the circuit shown here we have 4 outputs for motor. plz send me the connecting diagram if possible. | ||
| Hi! I am building a rotating platform to support a mass of 2-3kgs based on a slow moving stepper motor (almost a degree per step), and I want it to rorate 360 degrees in 12hrs or lesser. What are the option I have. (Can you suggest the best stepper motor for this purpose and also the control circuitry for the same). Hope to hear from you all. Thanks & Regards Sarsij Nayanam (sarsij.nayanam@gmail.com) | ||
| this is a cheap circuit but this not control the stepper on a optimized form. That not have current protection. then is very dangerous for the components | ||
| i want to control a stepper motor by PC through a parralel port and for this i need to the simplest interface circuit . the programs software which will be used are either turbo pascal or delphi | ||
| I need help on my project that is in stepper motor and streight gears | ||
| i want to control a stepper motor by PC through a parralel port and for this i need to the simplest interface circuit . the programs software which will be usefd are either turbo pascal or delphi | ||
| Well I made this too, but it isn't working. I have the same problem as @Santiago | ||
| Can the circuit be modified to drive a brushless dc motor? | ||
| this looks great. probably the cheapest driver i have found. thank you will use on my next cnc project | ||
| To Santiago: I am not try this circuit yet, but it seems it work. You must know: This is for Stepper Motor, if you want to try, just touch the step to the ground/zero a few times (on-off-on-off-on-off ...) it should make the motor move. If the motor not move in one direction, try to switch the coil connection (A to C or perhaps to B). Have a nice try.... | ||
| Hi!!can a high torque stepper motor be used to control a sequential gear box?Can you please assist me in this?Thanks | ||
| I want to have the motor go 90degrees up and 90 down on each cycle of a switch, will this be difficult. Would this be able to be via remote? | ||
| Hello, I built this circuit but it`s not working for me; when I switch on the power supply all the npn transistors get polarized and the stepper motor won't move, Can anybody help me? What am I doing wrong? thanks | ||
| Would this controller be able to operate a 5.25" disk drive reader motor to operate a model railway turntable. Cheers, Rod | ||
| i want to know about the entire stepper motor driver | ||
| hi, how can i control 103-770-6 sanyo denki stepper motor? it will be a big help for me if you reply... thanks a lot there... | ||
| this circuit does not work you should remove it from this site (Editor's notes: Circuit works fine.) |
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| we want a stepper motor which control which drive the voltage from A.C. main and supply to the plates to heat it through coil and this voltage is supplied to the ADC board in the low voltage form. So for this function we want a stepper motor of 140 equal steps and we want to know its specifications and also its driving circuit. If you can help us so pleaze send information about specifications and contro circuit. Thanks. | ||
| kindly help me make a schematic diagram and a code for stepper motor controller using micro c program..tnx! | ||
| Actually same as dudegong, can any one provide me the codes of stepper motor control through both parallel ports and USB ports using C++ and Visual Basic if possible. Cheers, http://stepper-motor.blogspot.com | ||
| hi! i just wanted to know how a stepper motor can be made to behave like a PMDC motor! | ||
| for the last posting plzzzzzzzz I'm guessing that you want to be able to use your computer tp power the stepper. Desktop works fine, make sure if you try to use your laptop that you have min 5v +/- on your printer port. Otherwise the program will run but stepper wont move. Ask away Rick | ||
| it is possible on pc. i want clear idea on that one. | ||
| Hi , can any one provid me the codes of stepper moter to control speed and directions to porgramme the PIC 16F84A using assembly languag. Thank you. | ||
| Hi this is the answer to a need for a simple, cheap stepper motor driver. It worked first time when coupled to a square wave crystal controlled oscillator. I used BD135 NPN (Ic = 1.5A max) output transistors to drive a small stepper motor. | ||
| hi first question: i want to drive this controller with a picbasic and i need to know how long is the pulse ps: a pulse is a 1-0-1 or 0-1-0 sequence, isn't it? 2nd question: looking TIP31 datasheet, i see that the collector-emitter voltage is 40v min to 100v max and 12v is not in this range. Do you have another reference for a 12v collector-emitter voltage? | ||
| Hi,I need wiring detail of stepper mtr(4wire)type 103-6410-0140 dc 1.84V, .9deg/step for my annual project.if anyone knows about it,please help me. | ||
| Can any one provide me the codes of stepper motor control through parallel ports using C++ | ||
| hi, i need to know abt the dc motor controller, i know about the H-bridge, i just want to know that there is a USB stick controller which is attached to the motor, the USB stick is programmable. if anyone have knowledge about this sort of a DC motor controller plz let me know. thanks | ||
| to know about 2 pole Stepper Motor which mechaniical anglae is 30 degree input 3 phase voltage. | ||
| hai this is the c-programme to run unipolar(5 wire)stepper motor through parallel port.
#include |
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| hi, Can any one provide me the codes of stepper motor control using ULN2003 as my driver. I would really appreciate ur help. thanks. | ||
| Can any one provide me the codes of stepper motor control through parallel ports using C......plzzzzzzzz | ||
| Can any one provide me the codes of stepper motor control through parallel ports/serial port using C/c++/java/vb....... | ||
| i have sanyo denki 103H7521-7051 stepper motor and somebody let me know please.can i drive that motor with this circuit.what are the motor connections. your attention of this is highly appriciated thanks. nuwan | ||
| im thinking of my thesis and im planning to make a programmable robotic arm.. can i use steppermotor for this? can this handle the load? can u give me more ideas? thanks!!! | ||
| Can any one provide me the codes of stepper motor control through parallel ports using C......plzzzzzzzz help me as i m in great mess......... | ||
| Just wetting your feet with steppers? Consider a bare bones approach via an Electronic Goldmine $2 stepper controlled with a US$3 PICAXE-08 => http://www.picaxe.orcon.net.nz/stepdemo.jpg that's an educational delight! | ||
| hi, i have a sanyo denki steping-syn motor, its tye is 103g78-2641, please help me identify its configurations because i have been searching in the internet and i didn't find anything...please email me if some one knows...thanks | ||
| The best and easiest circuit I have ever seen. Thanks for sharing! | ||
| is it possible to a dc motor be a stepper programable motor that can rotate in angle ang controlled circular motion? | ||
| do you have a circuit that controls the stepper motor's speed and automatically reverse its direction after a 360 deg turn? :-* | ||
| the control of stepper motor using electro pnumatics control giving high pulse and low pulse to run the motor | ||
| Do any body have microstep driver circuit ? email me back... | ||
| thanks for this circuit bro!.. its really help to a lot in my thesis in masteral.. thanks again! | ||
| got some pcl cards. wanted to control stepper motor thru pc. plz help | ||
| how to drive a stepper motor using a ULN2003 chip a 74ls373 and interfacinf it to a parrallel port??? | ||
| the curcuit above is very simple easy driver for stepper motor but i m designing a curcuit where i have to control a stepper motor using a microcontroller ATmega16 can u guide me in that waiying for ur reply | ||
| Please i need a circute for stepper motor and control through 16 key , please sent me this | ||
| hai, I`m a college student in Indonesia, Im studying at Bhayangkara University Surabaya. I needs schematic diagram driver motor for my study. I use 24v dc motor, i was try with L298, but its burn,please help me, if yo know other driver-motor diagram. thanks | ||
| how can control the stepper motor which has step angle 7.5 degree per step to a step angle 90 degree per step? | ||
| please share me a simple diagram of which a six wire stepper motor can be controll by pressing the forward and reverse button only | ||
| What is by meant by “step” in the schematic diagram of Stepper Motor Controller.It does have a circuit diagram for that to operated or a device. | ||
| Hello, Do anyone know about any IC which drives a stepper using only two signals (i.e. one for Forward and Other for Reverse) ?? If any one knows the name of IC please mail me... | ||
| i need a circuit using microcontroller based stepper motor using darlington pairs. | ||
| Regards..! Sir want to make simple brushless dc motor ESC to control a CD-Rom brushless motor having three phases. I m a poor person and i can't buy a new ESC. Please help me as the project i m making is very essential for my progress in University. Please send me a circuit Diagram for three phase 6 volts brushless ESC. I shall be greatful to you for this act of kindness.If someone reading this comment have the diagram. Kindly send it at "awais_niceperson@yahoo.com" | ||
| I need a project based on the stepper motor controlled by the microcontroller. | ||
| how could i get the controller device..i'am from MALAYSIA..now i'am doing my project for university as final year student in bachelor of electric instrumen,control and automation.. | ||
| Very useful. I used this model to design my own in the past. The only thing that should be noted is for beginners. this is that the logic gates and flip flops can be of any variety of logic. you could use a 7486, XOR and a 7476 flip flop. Or a combination. again, very useful, and skips all the crap, going straight to the schematic. | ||
| can i use the uln2003 ic instead of trans. TIP31 to drive unipolar stepper motor +12V ? and also the 4030 cmos ic to replace 4070 ? | ||
| is it the circuit that can be rotate both clockwise and counter clockwise | ||
| dear sir/madam i want to make simple brushless dc motor esc which is use in r/c airplane or helicopter.but i can't find good brushless esc.i hope you will be help me. so would you sent me a simple three phase brushless esc circuit. your regard labgiri | ||
| Wow someone posts a schematic (not even his design) and every wants tech support, someone even wants the PCB layout. If you want more current use darlingtons like the 2N6282 , higher voltage just make sure the transistors are rated for it. Usually 30VDC is not a problem. And don't forget those clamp diodes... 1N5819 work well. | ||
| The stepper motor that I have takes 4 wires and a ground. Will this controller work with it. What I see this one has is 4 wires with a 12volt feed am I understanding the drawing right. | ||
| I've been looking for a schematic for a bi-polar stepper motor driver (stepper motors have 2 coils/4 wires as opposed to 4 coils/6 wires). The caption at the right of the coils suggest thata there are 2 coils but it looks like there may be 6 connections to the motor which has me a little confused. THanks! | ||
| I want know how to control the resonance of stepper motor when it is moving at low speed? I am getting noise when it is coupled to spur gear at low speed. | ||
| I just have 2 questions for you. I was wondering what voltage of stepper motors this circuit could handle. And 2. how would I be able to connect it to an old parallel port to have it controlled by my computer. I'm asking because I'm building a mechanical arm and this circuit may work for what I need. Thanks for the help rockon | ||
| i would like to know the use of stepper motor controller in buildig a micromouse and which different ICs can be used for constructing it | ||
| I NEED PCB PATTERN PRINTED DESING | ||
| Hi! Do you have some experience in developing the controllar card. If yes, pl. let me know. I have one project in hand. Regards, Sanjay | ||
| Can we control it by light transducers | ||
| How to controll stepper motor M42SP-4NP Mitsumi? And What's datasheet of M42SP-4NP? Please send email to me... | ||
| i'm needing circuit step motor controler with IC98C51 or 80C51,who have to sent for me,thank | ||
| i want to made a black report on this topic, this is my subject there is no guide please help me? | ||
| Kain, did your analysis show it is a half-stepping circuit or a full step? Any way I could talk you into posting the "output chart"? | ||
| Important applications of this stepper motor . Circuit diagram | ||
| i just wanna ask if you know that kind of motor to use for the interface in our ultrasonic ranging sensor using Z86E0412PSC1866...i would love to have an opinion from you. | ||
| It is a unipolar controller. If you need a bipolar controller, this circuit can be augmented with an H-bridge. A quick google seach should turn something up (almost identical to this circuit, iirc). | ||
| can you give ideas of wireless stepper motor control using pc to microcontroller rf interface | ||
| Hy Balázs! This is Unipolar. Look the 4 pins in PNPs, and the 5th pin the core 12V. 5 pin = Unipolar. Egyébként sok sikert! | ||
| Hello! It is a bipolar or an unipolar stepper motor controller? | ||
| Fiebig: I just analyzed the circuit. It does remember its position when reversed. :) | ||
| Just wondering how the reverse works with this circuit. Does it remember it's position when reversed? IE: if I'm pulsing the circuit and it moves from position 1 to 2, 3, 4, 1, 2, and ends on 3, then flip the reverse switch, will the next step take it to 2 or does it restart at 4 or 1? | ||
| no pcb layout (Editor's notes: Nope, there isn't.) |
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