Hw 130 Motor Control Shield For Arduino Datasheet [ UHD ]

1. Introduction The HW-130 is a popular, low-cost motor driver shield designed for Arduino Uno, Arduino Leonardo, and similar compatible boards. It is based on the L293D quadruple half-H driver IC, making it ideal for driving small DC motors, bipolar stepper motors, and even solenoids. This shield is a clone or derivative of the well-known Adafruit Motor Shield V1 design, and it offers an entry-level solution for robotics and mechatronics projects.

| Issue | Likely Cause | Solution | |----------------------------|-----------------------------------------------|-------------------------------------------| | Motors not spinning | Insufficient voltage/current | Use external 7.2–9V supply | | IC gets very hot | Current >600 mA per channel sustained | Reduce load, add heatsink, or use relays | | Erratic motor movement | Glitching due to inductive kickback | Add 100nF caps across motor terminals | | Stepper motor skips steps | Too high speed or low current | Reduce speed, increase voltage | | Shield interferes with SPI | Pins 11–13 are used partially (13 free) | Avoid SPI devices unless remapped | Note: The L293D has a dropout voltage of ~1.5V. For a 6V motor, supply at least 7.5V. 9. Comparison with Other Shields | Feature | HW-130 (L293D) | L298N Shield | TB6612 Shield | |-----------------------|------------------------|--------------------|---------------------| | Max current | 0.6A continuous | 2A | 1.2A | | Voltage range | 4.5–12V | 5–24V | 4.5–13.5V | | PWM frequency noise | Audible (~1kHz) | Lower | Ultrasonic (high) | | Efficiency | Poor (linear-like) | Moderate | Good | | Price | Very low (~$5) | Low (~$8) | Moderate (~$12) | hw 130 motor control shield for arduino datasheet

Unlike its more powerful successor (e.g., L298N-based shields), the HW-130 focuses on low-voltage, low-current applications where simplicity and direct Arduino pin mapping are paramount. This shield is a clone or derivative of

#include <AFMotor.h> AF_DCMotor motor1(1); // M1 AF_DCMotor motor2(3); // M3 the HW-130 focuses on low-voltage