Stepper motor controller - A4988 system
Stepper motor controller - A4988 system
Stepper motor controller - A4988 system - zdjęcie 1
Stepper motor controller - A4988 system - zdjęcie 2

A4988 - stepper motor driver

Index: UCC-00500

Bipolar stepper motor controller - A4988, supplied with voltage from 8 to 35 V.

€1.16
€0.95 tax excl.

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Product description: Stepper motor controller - A4988 system

Controller enabling control of stepper motor thanks to module generating logical states like Arduino, STM32, Raspberry.

Power supply

To supply the logical part of the module, a voltage range from 3V to 5.5V is required, which must be led to the VDD pin. Motor supply voltages from 8V to 35V are fed to the VMOT pin.

Fig. 1 Connection of controller with microcontroller.

Connecting and disconnecting the motor while the controller is on can damage the controller.

Resolution A4988

Step size is selected using MS1, MS2, MS3 inputs. The possible settings are shown in the table below. Inputs MS1, MS2 and MS3 have an internal pull-down resistor (100kOm).

MS1 MS2 MS3 Resolution
low low low Full step
high low low 1/2 step
low high low 1/4 step
high high low 1/8th step
high high high step 1/16

Other inputs

One pulse given on the STEP pin causes one motor step in the direction selected by giving the appropriate logical state on the DIR pin. The STEP and DIR outputs are not pulled up internally. If the motor is to turn in only one direction, the DIR pin can be permanently connected to VCC or GND. The system has three more inputs to control power consumption: RST SLP and EN are described in the documentation. Please note that the RSTpin is not pulled up to anything. If not in use, it can be connected to an adjacentSLP pin.

A module with A4988 controller is also available.

Specification

  • Supply voltage: 8 to 35 V
  • Current on the coil: 2A
  • Working at 5 different step resolutions:

    • full step
    • 1/2
    • 1/4 step
    • 1/8th step
    • step 1/16

Same day shipping

Posting the payment for the order on our account on a business day up to 10 AM means sending the goods on the same day!

The time of payment depends on the ELIXIR's hours session of the sender's bank and the recipient of the transfer. It may take up to 2-4 working days.

Free delivery for orders exceeding 300 PLN!

Only for prepaid orders shipped to Poland.

Terms of delivery outside of Poland

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Slovakia

  • Delivery time: 2-4 days
  • Delivery cost: 35 PLN
  • Insurance: 5000 PLN
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: 50 PLN
  • Insurance: 5000 PLN
Kurier GLS - zone 3

Finland, Greece, Ireland, Sweden, Cyprus, Malta, Spain

  • Delivery time: 2-7 days
  • Delivery cost: 80 PLN
  • Insurance: 5000 PLN

Terms of delivery in Poland

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Poczta Polska
  • Delivery time: 1-3 days
  • Payment in advance: od 9,90 PLN
  • Cash on delivery: 17,90 PLN
  • Insurance: 1000 PLN
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Kurier GLS
  • Delivery time: 1-2 days
  • Payment in advance: od 14,90 PLN
  • Cash on delivery: 22,90 PLN
  • Insurance: 6000 PLN
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Paczkomaty 24/7
  • Delivery time: 1-3 days
  • Payment in advance: od 12,90 PLN
  • Over 8000 parcel lockers
  • Insurance: 200 PLN
  • Free delivery of orders over 300 PLN does not apply to parcels addressed outside of Poland.
  • The delivery period is counted in working days from the date of dispatch of the order.

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