| Pin No. | Name | Type | Description | |---------|----------|-------------|--------------------------------------------------| | 1 | VCC | Power | Motor power supply (2.5V - 12V) | | 2 | IN1 | Input | Input control signal for Channel A (H-Bridge A) | | 3 | IN2 | Input | Input control signal for Channel A | | 4 | GND | Power | Common ground (power & logic) | | 5 | OUT2 | Output | Output B terminal (Channel B motor connection) | | 6 | IN3 | Input | Input control signal for Channel B | | 7 | IN4 | Input | Input control signal for Channel B | | 8 | OUT1 | Output | Output A terminal (Channel A motor connection) |