One of the two driver boards was missing an indicator LED, which should have been spotted in even a cursory inspection of the board by QA. One of the two motors is malfunctioning after only a few hours of use; it gets about 20 degrees F hotter than the other under the same load, makes a clicking noise, and if you put your ear next to it, you can hear electricity arcing inside the motor as it runs. It also has trouble with some of the movements my CNC plotter requires of it, causing it to lose steps and ruin the entire print. On the other hand, these motors are very cheap. They can easily be converted from unipolar to bipolar, which doubles their torque and lets you use them with some of the common driver modules available today, such as the Arduino motor driver shield. Long story short, when you buy some of these motors, make sure you get spares from the very beginning, because you'll probably have one that's defective in a batch, and you don't want to have to wait for shipping twice.Read full review
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This stepper motor and it's driver module are well designed so that one can quickly connect and operate the stepper motor for various projects. The Arduino Stepper Motor Drive sketches are available for the user to choose a drive method that is suitable for there particular application. This stepper motor is packaged with a 1:64 output gear train. It has good torque but the output shaft runs at a modest speed. I recommend this stepper motor as a conveniently programmed unit.
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I bought this to use with an Arduino and the stepper motor library. Found the library would turn the stepper only in one direction - no matter which direction specified (plus or minus). Appears to be library problem. Found this code instead and it works well - so I ended up replacing the stepper library with it and writing some code to sit on it - works well.. Since I can't include the url - try searching for: Step28BYJ48
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would be nice to have.
Verified purchase: Yes | Condition: New
Fast and Reliable... Thanks
Verified purchase: Yes | Condition: New
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