The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0 to 5V pulse (or 0 to 3.3V pulse if you solder SJ2 closed on the EasyDriver). The EasyDriver requires a 6V to 30V supply to power the motor and can power any voltage of stepper motor. The EasyDriver has an on board voltage regulator for the digital interface that can be set to 5V or 3.3V. Connect a 4-wire stepper motor and a microcontroller and you've got precision motor control! EasyDriver drives bi-polar motors, and motors wired as bi-polar. I.e. 4,6, or 8 wire stepper motors.

Can I use the easy driver to run a bipolar NEMA 11 captive stepper motor? Its current per phase is shown as 1 amp. Easy driver spec says that the adjustable current control is from 150mA/phase to 700mA/phase.I am not running this motor at fast speed. The motor is supposed to support axial load of about 4 lbs.Thank you!


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I am currently building a 3-axis cnc mill with sparkfun stepper motors, and I was wondering if I could drive a dual motor x-axis with just one easy driver. I would connect the two motors in parallel and run the wires to the same locations on the board. I figured if I used double the rated current to power the motors this would work. Am I correct, or should I buy another easy driver?

Hey! I have a really basic and maybe funny question! But my stepper for an extruder print head requires 0.8A as it is specified on the motor. And the easy board gives max. 0.75; this means that I can't work with this board? -ASYA

After making my own stepper driver, these are worth all the money to just have it done for you. Works fantastic, easy to integrate with, drove mine right from a raspberry pi. Puts out a lot of heat, if you're using a motor to its full capability, consider a fan when mounting these somewhere. The pot is super small, I was turning it with a metal screw driver and it slipped, I touched the capacitors beneath it, it sparked and stopped working. Bummer. I'll totally be ordering a replacement though! It sparked and its fun, Sparkfun. Edit: After having problems while using the 5V it supplies to a teensy, and looking at the schematic, there's no fly-back diode in this, make sure to include one in your project if you intend to use that power!

This is the so easy to use. With the example code from the website, it is very streight forward on how to use this driver. It does get very warm. But if you use the sleep mode when the motor does not need to be on, the driver board has time too cool down.

This is an excellent way to control your stepper motor.But.... The arduino stepper libraries are excellent for controlling connection to 4 wire driver. Some im sure have the delays sorted out so they dont effect the timing on the rest of your code.The easy stepper driver would be so much more powerful if the arduino library was adjusted (for simple folk like me :), especially if acceleration and deceleration timing was also included. I find it difficult to write code without using delay in my project. Maybe im just not so smart :)Tek.

Hooking this up to a microcontroller is simple and changing to 3.3 instead of 5 for logic is trivial. While the chip can go faster, my stepper motor can not so making sure it does not skip required trial and error until I found the minimum delay which the combination of controller and motor could achieve. If you are in a hurry to just make things work (like I was) this really is a great simple driver. Make sure to take time to adjust the current limit for your motor using the test point before plugging the motor in - there is a voltage to current formula in the manual. For low cost this is very useful.

Works as advertised, easy to use, just follow their guides on the product webpage. Make sure to heed their note asking you to not connect/disconnect the motor while the driver is on; this will kill your EasyDriver so don't do it! I loosely wired my motor to the board and it came off during testing and my driver died; fortunately I purchased two boards anticipating I would burn the first one so I made sure to solder proper terminals to the driver the second time around and it's flawless now.

I'm new to using stepper drivers and was building a circuit of my own. It's bigger than most other drivers, but that's great when I'm trying to learn how to use a driver and I don't need it directly interfacing with anything else.I was frustrated before, and after I ordered these I could happily move on to the next steps in my project. Clear documentation and labeling made using these a breeze.

The board works well and easy to program for. I noticed doing small steps or just a few full rotations it's fine. After running full rotations and near high speed the chip gets extremely hot and the motor starts acting jerky. Probably a heat sink will solve that. Does anyone experience this and recommend a particular heatsink?

It can run 4000 steps per second driven by a 16MHz Arduino Pro Mini. Pretty good. It is reliable, but I always switch the motor off after running it for 6000 steps or less. If you leave it on, the full programmed current is flowing through it continuously and it gets really, really hot. Burn your finger hot. I would recommend a heatsink if you are going to leave the motor enabled (like when micro-stepping).Because the module is expensive, I did all of my testing with knock-offs, and fried two of them, then put this one in the finished product for reliability. I highly recommend this driver for smaller motors.

I have not been able to test it with the right kind of stepper motor. The one I have now takes about 2 A, and the driver can not deliver that much. It does make the motor turn, but not at the speed I need. Better motor is on its way, I do not expect any problems, once it has arrived.By the way, it is very easy to use!

A collaborator sent us the link from which they purchased the easy driver. They reported to us that the pins came soldered they ordered the same product. Whereas when we ordered, there were no pins included or soldered. I chatted with customer service and they said they don't sell anything with pins soldered except for one other product. For $22.90 inclusive of shipping, they should come soldered and ready to use.

Power and control lines are easy to use. I don't have to know anything about stepper motors to use them.Only minor change is that I would move the MS1 and MS2 motor speed controls together on the board for ease of wiring.

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Driver Backup and Driver Restore: The Driver Backup tool creates custom driver backup files that can be saved in folders or ZIP files. The Driver Restore tool uses them to roll back changes, if necessary.

Out-of-date drivers: A common complaint about driver update utilities is the occasional out-of-date driver, which can happen with a database of more than 3 million drivers (and for reasons beyond the software's scope or control). We recommend always creating restore points and backing up existing drivers in any case.

I am currently trying to design a PCB that is able to mount an Arduino Uno and a Big Easy driver to acuate a stepper motor. After hours of searching, I cannot seem to find the lib or footprint modules needed to incorporate the Big Easy Driver v1.2 into my schematic. I am reaching out to everyone in the Kicad community who have also had this issue to see how/where they managed to achieve this. Any help would be greatly appreciated.

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Hi, Michaelkreft. Thanks for ur reply. Do u know why we able to control steppers without an easy driver when we use directly Arduino IDE and why it is impossible when we use FireFly plugin? Thank u, again.

If you want the full motor torque you need to supply the motor with its rated current. With your 1.68A motor that means a BigEasydriver or the equivalent Pololu A4988 or the slightly higher current Pololu DRV8825. You will probably need a heatsink on the driver board. e24fc04721

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