A4988 Stepper Motor Driver Module for RepRap

A4988 Stepper Motor Driver Module for RepRap

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R91.22
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R65.00 Standard shipping applies to orders under R100.00, in most areas in South Africa. R35.00 Standard shipping applies to orders over R100.00. Some areas may attract a surcharge surcharge. This will be calculated at checkout if applicable.
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Main centres:  1-3 business days
Regional areas: 3-4 business days
Remote areas: 3-5 business days
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Product details

Condition
New
Location
South Africa
Product code
ACT-025
Bob Shop ID
617872840

A4988 Stepper Motor Driver Module

Adjusting the stepper driver current
See these instructions: Pololu_stepper_driver_board#Tuning_motor_current.

A4988 DRV8825
Max. theoretical current 1.5A 2.5A
Max. microsteps 16 32
PCB color Green / Red Purple
Stepper current adjust. trimpot Yes, near Dir pin Yes, near En pin
Typical Rs value 0.05 Ohm or
0.1 Ohm or
0.2 Ohm
0.1 Ohm
Vref formula (*) I_TripMax= Vref/(8*Rs) I_TripMax= Vref/(5*Rs)
Thermal Overload Protection (**) Yes Yes
PCB layers 2 4
Small heatsink included (***) Almost always Sometimes not
Active cooling required? Recommended Recommended
IC packaging 5x5mm 28-lead QFN 9.7x6.4mm 28HTSSOP


Specs for A4988 Stepper Motor Driver Module

The pdf file below contains the complete specifications for this driver module.

A4988-Datasheet

Packing list: 1 x stepper driver, 1 x heat sink

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