A4988 POLOLU DRIVER

Pololu A4988 compatible stepper drivers. (A4988, DRV8825 and others) 

The A4988 is a microstepping driver for controlling bipolar stepper motors which has built-in translator for easy operation.

A4988-Specifications

 

 

 

 

 

Microstepping can divide a motor’s basic step up to 256 times. Microstepping improves low speed smoothness and minimizes low speed resonance effects.
Microstepping produces roughly 30% less torque than dual phase full stepping

A4988-Truth-Table1

dfrobot LCD 16×2 Shield

SPECIFICATION

  • Operating Voltage: 5V
  • 5 Push buttons to supply a custom menu control panel
  • RST button for resetting arduino program
  • Integrate a potentiometer for adjusting the backlight
  • Pin used:
    • D4-D7    -> LCD Data transmission
    • D8       -> Register Select
    • D9       -> Enable pin
    • D10      -> Backlight control
  • APC&BT pin header for connecting wireless devices, directly compatible with:
  • Expanded available I/O pins
  • Expanded Analog Pinout with standard DFRobot configuration for fast sensor extension
  • Dimension: 80 x 58 mm (3.15x 2.28 in)

(SKU: DFR0009)

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