Smart Electronics 28byj-48 5V 4 Phase DC Gear Stepper Motor + Uln2003 Driver Board for Arduino DIY Kit

Description 5 Line 4 phase can be driven by ordinary uln2003 chip can also be connected in phase 2 development board used for. supporting the use of a direct plug and easy to use stepper motor used in the development board. Stepper motor driver board with ULN2003 A, B, C, D four-phase LED indicates the status of the stepper motor work Stepper motor with a standard interface, when used directly pluggable

FAQ

1,How about the quality of your product? 

Before shipping out, all goods have been double verified by KOZHIYOU quality inspection center ,Our test engineer will check for quality, including check the basic function of the hardware and software, the appearance, the packing, the necessary accessories and power adapter plug standard.  Less than 1% repairing rate within one year.    

 
2, What is the delivery time?
Normally, 1-5 workdays after payment; 
Special requirement orders, delivery time is negotiable.
Rich stock can satisfy urgent requirement.And support small orders.  


3,What are the warranty and after-sale of the product?  

 If the products can't work after receiving it,we will replace your new product immediately and  make the judgement for the issue.
If the products don't meet my demand after I received it,you can return back to us, we will refund your full payment.  
1-2 years warranty according to different products 
1-3 months to replace new items for free.    


4,Can you OEM|ODM? 

 Of course, we can. KOZHIYOU have professional R & D Center,we can develop and manufacture according to customer's requirements. 

We can make your package please Such as printing your logo.  


5,Are you a manufacturer?  
Yes, we manufacture different controller board, Exponsion Shiled Board, sensor Module for Arduino, 3Dprinter Controller Board,Raspberry Pi,Banana pi.
Our factory and office are in Shenzhen, welcome you to visit at any time!