How do I wire A4988?
Wiring A4988 stepper motor driver with Arduino UNO Connections are fairly simple. Start by connecting VDD and GND(next to VDD) to the 5V and ground pins on the Arduino. DIR and STEP input pins are connected to #2 & #3 digital output pins on Arduino respectively. connect the stepper motor to the 2B, 2A, 1A & 1B pins.
What is A4988 motor driver?
The A4988 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A.
How do I know if A4988 is working?
- disconnect the motors.
- connect pin 7 (STEP) and pin 8 (DIR) to pin 9 (GND)
- connect a voltage to pin 10 (VDD) of 3 – 5.5v.
- ensure pin 9 is connected to Ground. 5 test for voltage between pins 11 and 12 (1A-1B) 6 test for voltage between pins 13 and 14 ( 2A-2B)
How do I know if a4988 is working?
What is enable pin in A4988?
Page 10 of the A4988 datasheet discusses how the enable pin functions on the driver: Enable Input (ENABLE). This input turns on or off all of the FET outputs. When set to a logic high, the outputs are disabled. When set to a logic low, the internal control enables the outputs as required.