Description: The EasyDriver is a simple to use stepper motor driver, and mates with the Firefly Interactive Prototypin Shield. EasyDriver requires a 7V to 20V supply to power the motor and can power any voltage of stepper motor. The EasyDriver has an on board voltage regulator for the digital interface that can be set to 5V or 3.3V. Connect a 4-wire stepper motor and a microcontroller and you’ve got precision motor control! EasyDriver drives bi-polar motors, and motors wired as bi-polar. I.e. 4,6, or 8 wire stepper motors. On this version (v4.4) we fixed the silk error on the min/max adjustment.

Note: Do not connect or disconnect a motor while the driver is energized. This will cause permanent damage to the A3967 IC.

Note: This is the newest version of the EasyDriver V4 shield manufactured by Sparkfun Electronics in collaboration with Brian Schmalz. 

Features:

• A3967 microstepping driver.
• MS1 and MS2 pins broken out to change micro-stepping resolution to full, half, quarter and eighth steps (defaults to eighths).
• Compatible with 4, 6, and 8 wire stepper motors of any voltage.
• Adjustable current control from 150mA/phase to 750mA/phase.
• Power supply range from 7V to 20V. The higher the voltage, the higher the torque at high speeds.