Hw 130 Motor Control Shield For Arduino Datasheet

The Ultimate Guide to the HW 130 Motor Control Shield for Arduino: A Complete Datasheet & Application Note

Weaknesses / Missing Information

| Issue | Implication | |-------|-------------| | No thermal or current derating curves | Users often overload the L293D (600mA continuous, 1.2A peak per channel) because the datasheet doesn’t emphasize limits. | | Missing voltage drop specs | L293D drops ~1.4V–2V, reducing torque at low battery voltages – not explained. | | No flyback diode specification | While onboard diodes exist, no guidance on adding external Schottky diodes for inductive kickback. | | PWM frequency limits | Doesn’t state max PWM frequency (L293D works <5 kHz typically). Users may apply 20 kHz+ and get poor response. | | Schematic errors | Many clone datasheets have mismatched pin labels (e.g., swapping ENA/ENB). |

What is the HW-130?

The HW-130 is a clone/derivative of the classic L298N dual H-bridge driver. However, unlike the big blue heatsink modules, the HW-130 is designed as a shield that stacks directly onto an Arduino Uno or Leonardo. hw 130 motor control shield for arduino datasheet

Key Specs (From the Board):

• Driver Chip: L298N (or a clone like the TB6612 on some variants—check your chip)
• Logic Voltage: 5V (from Arduino)
• Motor Voltage: 5V – 12V (External supply)
• Max Current: 2A per channel (peak), 1A continuous (without active cooling)

Getting started — wiring

1. Power:
   • Connect Arduino 5V via header.
   • Connect motor supply (VM) to shield’s power terminal; match voltage to motor rating.
   • Connect grounds: ensure Arduino GND and motor supply GND are common.
   • If shield has a VIN jumper, remove or set appropriately to avoid back-powering Arduino.
2. Motors:
   • Connect motor wires to M1 and M2 screw terminals.
3. Control pins:
   • Confirm which Arduino digital pins correspond to IN1/IN2/ENA etc. on the shield silkscreen.
   • Connect EN pins to PWM-capable pins on Arduino for speed control.
   • Connect direction pins to digital pins.
4. Optional:
   • Connect current sense pins to analog inputs if supported and desired.
   • Add flyback diodes if not built into the driver IC (most modern H-bridge ICs include them).