High-Power L298P Motor Shield – Stepper & DC Motor Expansion Module

Description

Product Overview

The High-Power L298P Motor Shield is a feature-rich expansion module designed to transform your Arduino (or compatible microcontroller) into a powerful motor control workstation. Unlike discrete motor driver modules, this shield adopts a stackable design that plugs directly onto your Arduino Uno or Mega board, eliminating the need for complex breadboard wiring and creating a compact, integrated control system .

At its core is the ST L298P motor driver IC—a dual full-bridge driver capable of handling high voltage and high current. This shield can independently control the speed and direction of two DC motors or drive one bipolar stepper motor with precision. With a continuous output current of 2A per channel (peaks up to 3A) and support for motor supply voltages up to 35V, it is suitable for a wide range of robotics, CNC, and automation projects .

The L298P represents an upgrade over the traditional L298N, featuring an integrated heat sink that allows for a lower profile, making the shield stackable with other shields. Additional enhancements include 8 LED indicators for real-time status monitoring (power, direction, speed) and a convenient power switch for easy debugging . Advanced features like current sensing allow your projects to detect motor stalls, measure load, and implement closed-loop control algorithms .

Key Features

• Stackable Arduino Shield Design: Plugs directly onto Arduino Uno or Mega boards. The low-profile integrated heat sink allows for stacking with other shields, saving space and simplifying assembly .

• Dual H-Bridge Driver: Based on the STMicroelectronics L298P IC, providing two independent H-bridges for bidirectional control of two DC motors or one bipolar stepper motor .

• High Output Current: Delivers a continuous 2A current per channel (3A peak), capable of driving a wide variety of hobby and industrial-grade motors .

• Wide Motor Supply Voltage: Accepts motor power from 4.8V to 35V (via external power terminals), offering flexibility for different motor types and battery configurations .

• Integrated 5V Logic Regulator: An onboard regulator provides logic power (5V) to the shield and can also power the Arduino board when the motor supply is between 7V and 12V (jumper selectable) .

• PWM Speed Control: Supports both conventional PWM and advanced PLL (Phase-Locked Loop) speed control modes for smooth, efficient motor speed regulation .

• Onboard Current Sensing: Features analog current sensing outputs (typically A0 and A1). The shield outputs a voltage proportional to the motor current (approx. 1.65V per Amp or 3.3V at 2A), enabling torque control and stall detection .

• Brake Function: Includes dedicated brake pins that rapidly short the motor terminals for quick, controlled stopping .

• 8 LED Indicators: Provides visual feedback with LEDs for power, reset, motor direction, and PWM activity, simplifying troubleshooting .

• On/Off Power Switch: A built-in slide switch allows you to cut motor power without unplugging cables, which is invaluable during programming and debugging .

• Expandable I/O: Brings out additional digital and analog pins via 2.54mm headers, allowing you to connect sensors and other peripherals without sacrificing your Arduino’s I/O .

Technical Specifications