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and excellent quality 3d printer a3967 v44 easydriver stepper motor driver development board step angle of 1.8 degrees

and excellent quality 3d printer a3967 v44 easydriver stepper motor driver development board step angle of 1.8 degrees

Model: printer-and-accessories-13290

$4.00  $3.20

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6 reviews

Current Reviews: 6

We ship to over 200 countries worldwide.

Tailoring Period: 7-12 working days.

Shipping Time: 2-5 working days.

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Item specifics

Brand Name: A3967 V44 EasyDriver

Model Number: A3967 V44 EasyDriver Stepper Motor Driver Development Board

is_customized: Yes


Stepper motor is usually defined with stepping angle or numbers of steps parameter,
the general motor revolution is divided into 200 steps, which is the step angle
of 1.8 degrees, EasyDriver has the function of interval subdivision, this driver
board subdivision 8 segments, that is, each step of the motor is subdivided into
8 small step, this can be more precise control, that is to say, the EasyDriver needs
to 1600 steps to complete a full 360 degree rotation.
a3967slb PWM constant current control micro step distance driving for two phase
stepper motor drives which is produced by allegro company in the United State.
Its working voltage up to 30v, the drive current is 750ma, a a3967slb can drive a
two-phase stepper motor drive and achieve 8 segments.
The chip pwm current control circuit can be added to the pfd voltage and set to slow,
fast and mixed three current-decay mode, if the voltage is higher than pfd end 0.6vdd,
select slow decay mode. If less than 0.21vdd, then select the fast decay mode.
Between the two decay modes is mixed mode. In addition, a3967slb also provide
comprehensive protection measures, including transient voltage suppression,
overheat protection against current through, under-voltage self-locking function.
No additional other interface circuit between a3967slb and microprocessor, the chip
taken easystepper interface, made 8 control nes reduce to 2 ( step and direction ),
just need to simply enter the stepper motor control's pulse , its embedded converter
can be achieved on the stepper motor control.
A3967slb need some resistors, capacitors to adjust its operating parameters,
the whole drive circuit is very simple.


Ms1 and ms2 is the logic input port that selected by subdivide resolution of the stepper motor.
Dir is the selects mouth of running direction of motor.
Reset is used for reset the chip's original value, block all external output.
Step is the pulse input port.
Out1a, out1b, out2a, out2b is the h bridge's two pairs of output ports.
Enable is enable end.
sense1, sense2 is the h bridge's  current sense resistor.
Ref is the reference voltage.
Qnd is logic and power.
Rc1, rc2 is h bridge fixed deadne analog input.

Package included:    

1 x EasyDriver stepper motor driver

1) We accept Apay, West Union, TT. All major credit cards are accepted through secure payment processor ESCROW.
2) Payment must be made within 15 days of order.
3) If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 15 days.

Item are shipped within 5 business days once full payment is settled.If you can't get your items in time,please contact to us first,we wil check and solve it for you soon.We will reply your mail within 24 hours normally. sometimes have a ttle delay due to the weekend or hoday.If you can't get our mail after 48 hours,please check your spam or contact to us with other mail address.

If item DOA(Dead of Arrival),Buyers Can return it in 14 Days,We will Replace it with New item after we receive DOA item.Please Contact us Before you sent the item back Warranty:
All item Comes with Basic 3 Month Sellers Warranty,if item defective in 3 Month,We will offer replacement withour extra Charger(including shipping fee)After we Receive the Defective item.
If item Defective after 3 Month,Buyers can still send it back,We will contact suppers or Manufactory for Warranty.Buyers Might Need pay the Shipping fee For resend the replaced item.
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.
It is impossible to address issues if we do not know about them!

Product Description
Packaging Details Unit

Type: piece
Weight: 0.050kg (0.11lb.)
Package Size: 5cm x 4cm x 3cm (1.97in x 1.57in x 1.18in)

If you would like to pay by PayPal, you can pay to our PayPal account: computerdcjack@gmail.com and email us. Please email us the name of the product, the quantity and other product attributes. The email address is computerdcjack@gmail.com. No matter how many goods you buy in one order, the freight you need to pay is only 15 dollars

1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. 
8. Delivery Time:

China Post Air Parcel 10-30 DAYS intmail.183.com.cn/

100% Money Back Guarantee on each item. Please contact us within 24 hours upon your receipt of the items. A full refund including shipping will be rendered in the event that the item is not as described. The refund will be rendered once the item has been sent back in original condition.

Customer Reviews:

Displaying 1 to 6 (of 6 reviews)

by Arren Goodwin
Date Added: 10/25/2017
Sent wrong size ; then expensive returnWe ordered US 8/ UK5/38EU. Received US 7 which was too small. The shoe box read 7M, but a stick-on label read 5UK/38EU (obviously incorrect). Then cost over $17 to return post the wrong size shoes.If you are going to offer sales in US, find an easier & less costly way to return post items. Also establish a US 800 number to make it easier for US customers to contact customer support.

Rating: 5 of 5 Stars [5 of 5 Stars]

by Emma King-Venables
Date Added: 10/25/2017
Outstanding ;-)Great wellies for all the family, and at fantastic prices. I would always go to EasyWellies first for all my wellie needs.

Rating: 5 of 5 Stars [5 of 5 Stars]

by Sherryl
Date Added: 10/25/2017
Presentation of fitflops outstanding Excellent price and the goods arrived in a nice shoebox--ideal for stacking in the closet. Very impressed and will be shopping with them again.

Rating: 5 of 5 Stars [5 of 5 Stars]

Date Added: 10/25/2017
Speedy service, quality productsNo problems. Found what I was looking for on the website straight away. Good parcel tracking service link. Just one criticism which is not barringtons fault, when they tried to deliver the parcel they didn't leave a calling card so I had to find where my parcel had gone myself. Apart from that, happy days, quality products.

Rating: 5 of 5 Stars [5 of 5 Stars]

by of M Campbell
Date Added: 10/25/2017
Quick! Ordered one day came the next fantastic service

Rating: 5 of 5 Stars [5 of 5 Stars]

by Maggie
Date Added: 10/25/2017
Efficient and trustworthyI have had no problems only satisfaction using this company. When I wanted to ask advice there was a person at the end of the phone who was able to give considered advice.

Rating: 5 of 5 Stars [5 of 5 Stars]

Displaying 1 to 6 (of 6 reviews)


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