Some versions of the HW‑130 have a jumper labeled or 5V‑EN . If this jumper is in place, the motor power supply also feeds the Arduino’s 5 V rail. Remove this jumper unless you are absolutely certain that your motor supply voltage is within a safe range for the Arduino (typically 7 V–12 V). A 12 V supply may be acceptable, but a 15 V supply can damage the Arduino.
Hope this saves you some time! Happy building! 🤖🔧 hw 130 motor control shield for arduino datasheet free
Below is a technical overview based on the standard HW-130 datasheet details and user documentation . Some versions of the HW‑130 have a jumper