Connects Arduino 5V to the motor power line (Only use for very small, low-current 5V motors).
Before you can run motors, you must install the shield, connect power, and load the correct library.
Many Arduino tutorials recommend keeping the motor power supply completely isolated from the Arduino’s power supply. This is especially important when you are also running sensitive modules such as Bluetooth modules, sensors, or servos. Power the Arduino via its USB port or a dedicated 9 V adapter, and power the motors through the EXT_PWR terminal. hw 130 motor control shield for arduino datasheet free
The L293D chip on the HW‑130 can provide (1.2 A peak). If your motors exceed this limit, the chip will overheat and may shut down temporarily. This often manifests as motors that stop working after a few seconds of running. In such cases, consider using a more powerful driver such as an L298N‑based shield, which can handle up to 2 A per channel .
Up to (unipolar or bipolar) with single, double, interleaved, or micro-stepping. Connects Arduino 5V to the motor power line
(often based on the L293D or L298P chipset) is a popular, modular solution designed specifically to plug directly into an Arduino R3 pinout, making motor control accessible and straightforward .
Avoid this method if your motors draw more than 500mA. High current draws can cause voltage drops that reset the Arduino. Option B: Isolated Power Supply (Recommended) Setup: Remove the PWR Jumper completely from the shield. This is especially important when you are also
The library also provides a simple interface for stepper motors connected across motor ports 1 and 2 (or 3 and 4).