The HW-130 sits directly on top of the Arduino Uno. It uses the following Arduino digital and analog pins (note that analog pins A0–A5 are broken out for general use):
| Aspect | Review | |--------|--------| | Pinout clarity | Good – clearly labels which Arduino pins are used for motor direction (IN1–IN4), enable pins (ENA, ENB), and servo connections. | | Basic wiring diagram | Shows how to connect motors, external power supply, and the shield stacking. | | Power supply notes | Mentions jumper for logic power (from Arduino 5V) vs motor power (external). Warns against powering large motors from Arduino’s 5V. | | Truth table | Simple truth table for H-bridge states (forward/reverse/brake/stop). | hw 130 motor control shield for arduino datasheet