The HW-130 is a popular L293D-based motor driver shield. It is designed to plug directly onto an Arduino Uno or Mega to control multiple motors simultaneously. Key Specifications Driver Chip: Two L293D Push-Pull Drivers. Motor Capacity: 4 Bi-directional DC motors (8-bit speed resolution). 2 Stepper motors (unipolar or bipolar). 2 Servo motors (connected to Arduino’s high-res timers).
Current: 0.6A per bridge (1.2A peak) with thermal protection. Voltage: Wide range from 4.5V to 25V DC.
Logic: Integrated pull-down resistors keep motors disabled during power-up. Pin Mapping Servos: Use Digital Pins 9 and 10.
DC/Stepper Motors: Controlled via a 74HCT594 shift register to save Arduino pins.
Power Jumper: If the "PWR" jumper is connected, the shield draws power from the Arduino. For high-torque motors, remove the jumper and use the EXT_PWR terminals.
💡 Pro Tip: Always use an external power supply for DC motors to avoid crashing your Arduino due to voltage drops.
The hum of the lab was the only sound until the HW-130 shield clicked onto the Arduino board. For Leo, this wasn't just a sandwich of fiberglass and copper; it was the nervous system of his greatest project yet. He tightened the terminal screws on Motor 1, the wire biting into the brass. "Don't fail me now," he whispered.
He uploaded the code. The status LED flickered a steady, confident red. Outside, the rain lashed against the workshop window, but inside, the air was electric. With a sharp tap on the keyboard, the command was sent.
The L293D chips began to warm under his fingertip. Suddenly, the mechanical arm on the desk twitched. Then, with a smooth, gear-driven whine, it reached out. It didn't stutter or stall. The dual H-bridges held the current steady, translating lines of C++ into raw, physical grace. For the first time, his creation didn't just exist—it moved. hw 130 motor control shield for arduino datasheet
The Go to product viewer dialog for this item. (often labeled as an L293D Motor Driver Shield) is a versatile, low-cost expansion board for the Arduino Uno and Mega. It is essentially a clone of the original Adafruit Motor Shield V1, designed to drive inductive loads such as relays, solenoids, DC motors, and stepper motors. Key Technical Specifications
The board is powered by two L293D motor driver chips and one 74HC595 shift register.
DC Motors: Up to 4 bi-directional DC motors with 8-bit speed selection.
Stepper Motors: Up to 2 stepper motors (unipolar or bipolar).
Servos: 2 dedicated ports for 5V hobby servos connected to high-resolution timers.
Voltage Range: Supports motor voltages from 4.5V to 12V (the L293D IC itself can handle up to 36V, but the shield components often limit it).
Output Current: 0.6A per channel (1.2A peak) with thermal shutdown protection. Pinout and Hardware Setup
The shield simplifies wiring by plugging directly into the Arduino headers. The HW-130 is a popular L293D-based motor driver shield
Connect:
Control via:
✅ Use it for hobbyist projects with small DC motors (stall current <600mA).
❌ Don’t rely on it for precision control, high current (>1A), or battery-powered robotics where efficiency matters.
📘 Supplement with the official L293D datasheet from TI/ST for thermal and switching characteristics.
If you have the specific HW-130 document (or a link to it), I can check for version-specific errors.
HW-130 Motor Control Shield is a multi-functional motor driver board designed for the Arduino Uno . It is a cost-effective alternative to the original Adafruit Motor Shield V1 and shares a nearly identical schematic and pinout. Core Specifications Driver Chips: quadruple half-H bridge drivers. Logic Chip:
8-bit serial-to-parallel shift register used to expand Arduino pins. Voltage Range: Supports motor voltages from 4.5V to 24V (though often recommended up to 12V for generic versions). Output Current: continuous current per channel ( ) with thermal shutdown protection. 5.imimg.com Driving Capabilities
The shield can simultaneously control several combinations of motors: DC Motors: 4 bi-directional DC motors with individual 8-bit speed selection. Stepper Motors: 2 stepper motors
(unipolar or bipolar) with single/double coil, interleaved, or micro-stepping support. Servo Motors: 2 interfaces for 5V hobby servos Common troubleshooting
connected to the Arduino's high-resolution dedicated timers for jitter-free operation. 5.imimg.com Pin Mapping & Usage
Because it uses a shift register, the motors are not connected to the Arduino directly. You use a library like the Adafruit Motor Shield Library (v1) to communicate with them. Arduino Pin Usage Digital Pin 9 Digital Pin 10 DC Motor 1 / Stepper 1 Digital Pin 11 (PWM) DC Motor 2 / Stepper 1 Digital Pin 3 (PWM) DC Motor 3 / Stepper 2 Digital Pin 5 (PWM) DC Motor 4 / Stepper 2 Digital Pin 6 (PWM) Latch (74HC595) Digital Pins 4, 7, 8, and 12 Power Management External Power (EXT_PWR):
Located on a 2-pin terminal block. It is highly recommended to use an external supply for motors rather than the Arduino's 5V pin to avoid overheating or logic resets. Power Jumper: Jumper ON: Powers the Arduino from the motor's external power supply. Jumper OFF: Separates the logic and motor power. Remove this
if you are powering the Arduino via USB and using an external battery for the motors to prevent damage.
All six analog input pins (A0–A5) remain available for use with other sensors. library to test your DC motors? Adafruit Motor Shield
This shield utilizes specific Arduino pins to control the motors. If you attach the shield, these pins on the Arduino are occupied.
If you want, I can:
| 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.