View source for Ks0141 keyestudio DRV8825 stepper motor driver for 3D printer


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==Introduction==
The DRV8825 stepper motor driver carrier is a breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver. <br>
The module has a pinout and interface that are nearly identical to those of our A4988 stepper motor driver carriers, so it can be used as a higher-performance drop-in replacement for those boards in many applications. <br>
The DRV8825 features adjustable current limiting, over-current and over-temperature protection, and six microstep resolutions (down to 1/32-step). 
It operates from 8.2-45V and can deliver up to approximately 1.5A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling).<br>
<br>[[File:Ks0141-1.png|500px|frameless|thumb]]<br>

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==Specification==
* Suitable for driving stepper motors within 8.2V~45V 2.5A；  
* Simple step and direction control interface;
* Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step;  
* Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates 
* Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay);  
* Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout;
* Short-to-ground and shorted-load protection.

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== Adjusting Drive current ==
* 1. When use the DRV8825 to drive the stepper motor, we can turn the potentiometer on the A4988 module to adjust the upper limit of the output current. <br>    
[[File:141图片1.png|500px|frameless|thumb]] The voltage between the marked potentiometer and GND is '''VREF'''.    <br>
* 2. The calculation formula of the current upper limit is '''I=2*VREF''' , '''VREF=0.5I'''    <br>
* 3. The current limit of the module is 2.5A, so '''VREF=2.5*0.5''', that is, 1.25V.   
  
== Resources==
https://fs.keyestudio.com/KS0141

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== Buy From ==

*[https://www.keyestudio.com/free-shipping-5pcs-lot-keyestudio-drv8825-driver-for-3-d-printer-p0352-p0352.html   '''Official Website''']

*[https://www.aliexpress.com/store/product/Free-shipping-3D-printer-StepStick-DRV8825-stepper-motor-driver-Reprap-4-layer-PCB-board-5pcs-LOT/1452162_32261239757.html?spm=2114.12010615.8148356.3.80ccc1e04p3VY5    '''Available on aliexpress''']

*[https://www.amazon.com/dp/B01E8KNTA0     '''Available on Amazon''']


[[Category:Module]]