This compact expansion board plugs directly into the GPIO header on a Raspberry Pi and provides an easy and low-cost solution for driving a pair of small brushed DC motors. Its pair of integrated MAX14870 motor drivers allows it to operate from 4.5 V to 36 V, making it a great control option for small motors that run on a wide range of voltages. The board can deliver a continuous 1.7 A (2.5 A peak) per motor. This version ships as a partial kit; all surface-mount components are installed, but the included through-hole connectors are not soldered in.
Two single-channel H-bridge motor drivers with shoot-through protection and internal free-wheeling diodes (can each drive one DC motor)
Motor supply voltage: 4.5 V to 36 V
Output current: 1.7 A continuous (2.5 A peak) per motor
Board can optionally power the Raspberry Pi base directly through add-on regulator (not included)
Python librarymakes it easy to get started using this board as a motor driver expansion board
GPIO pin mappings can be customized if the default mappings are not convenient
Reverse-voltage protection on motor power supply
Under-voltage lockout and protection against over-current and over-temperature
Surface-mount resistor can optionally be added to enable automatic current limiting
Dimensions (Without included hardware)
Size: 1.7″ × 0.65″
Weight: 3.2 g
General specifications
Motor driver: MAX14870 (x2)
Motor channels: 2
Minimum operating voltage: 4.5 V
Maximum operating voltage: 36 V
Continuous output current per channel: 1.7 A. Typical results with VIN=18 V and 90% duty cycle at room temperature.
Manufacturer according to GPSR Pololu Corporation, Pilot Rd. 920, 89119 Las Vegas, Nevada, Vereinigte Staaten, [email protected], https://www.pololu.com/
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