DRV8835 Dual Motor Driver Hat for Raspberry Pi - 1.2A

RASPB-002753


This compact expansion board plugs directly into the GPIO header on a Raspberry Pi B+ and provides an easy and low-cost solution for driving a pair of small brushed DC motors. Its integrated DRV8835 dual motor driver allows it to operate from 1.5 V to 11 V, making it a great control option for low-voltage motors. The board can deliver a continuous 1.2 A (1.5 A peak) per motor, or a continuous 2.4 A (3 A peak) to a single motor when configured with both channels connected in parallel.

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This motor driver kit and its corresponding Python library make it easy to control a pair of bidirectional, brushed DC motors with a Raspberry Pi. The expansion board features Texas Instruments’ DRV8835 dual H-bridge motor driver IC, which allows it to operate from 1.5 V to 11 V and makes it particularly well suited for driving small, low-voltage motors. The board can deliver a continuous 1.2 A per channel and tolerate peak currents up to 1.5 A per channel for a few seconds, and the channels can be optionally configured to run in parallel to deliver twice the current to a single motor. The board ships fully populated with its SMD components, including the DRV8835 driver and a FET for reverse battery protection; header pins for interfacing with a Raspberry Pi and terminal blocks for connecting motors and power are included but are not soldered in (see theAssembly with included hardware section below).

Features:

  • Dual-H-bridge motor driver: can drive two DC motors or one bipolar stepper motor
  • Motor supply voltage: 1.5 V to 11 V
  • Logic supply voltage 2 V to 7 V
  • Output current: 1.2 A continuous (1.5 A peak) per motor
  • Motor outputs can be paralleled to deliver 2.4 A continuous (3 A peak) to a single motor
  • PWM operation up to 250 kHz (ultrasonic frequencies allow for quieter motor operation)
  • Two possible interface modes: PHASE/ENABLE (default – one pin for direction, another for speed) or IN/IN (outputs mostly mirror inputs)
  • Board can optionally power the Raspberry Pi base directly through add-on regulator (not included)
  • Python library makes 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

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