![]() All the logic inputs are 3.3 to 5V compatible so you can run the driver board from an Arduino or Raspberry Pi, while the motor power has a separate input from 4.5 to 13.5V DC. ![]() The H-bridges are disabled at power-up to prevent twitching when power is applied. ![]() The chip has built-in flyback diodes to prevent damage due to inductive kick-back and Adafruit have added reverse polarity protection on the motor power input as well. It uses a TB6612 dual H-bridge chip that can supply 1.2A, which isn't that high in real terms but it's a huge current compared to the recommended 20mA output from an Arduino GPIO pin for example. The Adafruit Solenoid / Stepper Motor Driver Breakout Board is a versatile high current driver able to control 2 x bidirectional DC motors, 1 x stepper motor or 2 x solenoids.
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