A3967 stepper motor controller module

The stepper motor driver is designed to control DC motors or stepper motors. The stepper motor driver module is compatible with all motors that work with control logic (0 - 5V). The module can be used in robot design or in projects that need to use DC motors.

The driver is based on the A3967SLBT chip. The module has a built-in voltage regulator. When using full step mode, the module supplies the motor windings with full current and the direction of the current changes with each step. In microstepping mode, with each step, the windings are not fully energized. Using this mode, you can fix the shaft in intermediate positions between steps.

The module board has 17 pins:

MOTOR (A+, A-, B+, B-): Stepper motor connection
PFD: IC driver PWM setting
RST: reset
ENABLE: disables all drivers when logic low
MS1 and MS2: motor control
M+: chip and motor supply voltage
+5V: stabilizer voltage output
SLP: Standby (Reduce Power Consumption)
STEP: driver step
DIR: motor rotation direction setting
GND: ground
The stepper motor driver defaults to 1/8 step. If you need to set the full step, you need to apply a low level (0) to the contacts MS1 and MS2. For a half step, apply a low level to MS2, respectively for 1/4 to MS1.

There are 3 jumpers on the board:

APWR: disables the stabilizer
CUR and ADJ: limitation of the maximum current that is supplied to the motor (150 mA, 750 mA)
3/5: sets voltage (3 or 5V)
The module can be powered from an external power supply or from a microcontroller device. The supply voltage range is 6 - 30 V, and the integrated logic voltage is 3.3 - 5 V. As the voltage increases, the motor torque increases.

Module Specifications:

Chip A3967SLBT
Logic supply voltage, V 3.3 ... 5
Driver supply voltage, V 6 ... 30
Operating current per phase, mA 150 ... 750
Microstep 1, 1/2, 1/4, 1/8
Module dimensions, mm 49 x 21 x 9