However, soldering is required for assembly of the included through-hole parts. This motor driver board ships with all of the surface-mount parts populated. Pololu dual MC33926 motor driver shield for Arduino with included hardware. 3 There is no reverse-voltage protection on the logic supply. See the MC33926 datasheet (1MB pdf) for more information. 2 Internal peak-current limiting gracefully reduces the output power at load currents above 6.5 A ± 1.5 A. Operation from 5-8 V reduces maximum continuous output current (driver performance is derated in this range). Output short-to-ground and short-to-Vcc protectionġ The board supports transient (Over-temperature shutdown and hysteresis.Reverse-voltage protection on motor supply 3.
Arduino library makes it easy to get started using this board as a motor driver shield.Arduino pin mappings can be customized if the default mappings are not convenient.When used as a shield, the motor power supply can optionally be used to power the Arduino base as well.Can be used with an Arduino or Arduino clone (through shield headers) or other microcontroller boards (through 0.1″ header along the left side).Motor indicator LEDs show what the outputs are doing even when no motor is connected.525 mV/A only active while H-bridge is driving) Current sense voltage output proportional to motor current (approx.PWM operation up to 20 kHz, which is ultrasonic and allows for quieter motor operation.Inputs compatible with both 5 V and 3.3 V systems.Output current: 3 A continuous (5 A peak 2) per motor.Wide operating voltage range: 5 – 28 V 1.Pololu dual MC33926 motor driver shield for Arduino, bottom view with board dimensions. Pololu dual MC33926 motor driver shield, assembled and connected to an Arduino Leonardo. For lower-power, lower-cost alternatives, consider the dual MAX14870 motor driver shield, DRV8835 dual motor driver shield, or A4990 dual motor driver shield.
Using the dual MC33926 motor driver shield with a microcontroller (gray connections are optional).įor a higher-power alternative to this shield, please consider the dual VNH5019 motor driver shield, which can deliver a continuous 12 A per channel. Using the dual MC33926 motor driver shield with an Arduino (shield and Arduino powered separately). This versatility, along with an option to power the Arduino directly from the shield, sets this board apart from similar competing motor shields. The Arduino pin mappings can all be customized if the defaults are not convenient, and the simplified MC33926 control lines are broken out along the left side of the board, providing a convenient interface point for other microcontroller boards (see the right connection diagram below). This versatile motor driver is intended for a wide range of users, from beginners who just want a plug-and-play motor control solution for their Arduinos (and are okay with a little soldering) to more advanced users who want a dual MC33926 carrier that requires fewer I/O pins to control. It ships fully populated with its SMD components, including the two MC33926 ICs, as shown in the picture to the right stackable Arduino headers and terminal blocks for connecting motors and motor power are included but are not soldered in (see the Included Hardware section below). The board features a pair of Freescale MC33926 motor drivers, which operate from 5 to 28 V and can deliver a continuous 3 A per channel, and includes current sense circuitry, protection resistors, a FET for reverse battery protection, and logic gates to reduce the required number of I/O pins. This motor driver shield and its corresponding Arduino library make it easy to control two bidirectional, brushed DC motors with an Arduino or compatible board, such as the A-Star 32U4 Prime. Pololu dual MC33926 motor driver shield for Arduino.
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