Holybro PMW3901 Optical Flow Sensor
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The Holybro PMW3901 Optical Flow Sensor is a precision navigation module designed to improve low-altitude positioning and flight stability in drones and robotic systems. By analyzing patterns on the ground surface, this optical flow sensor provides real-time movement data that enhances hovering accuracy, smooth trajectory control, and overall flight performance. Compact and lightweight, it integrates seamlessly with popular flight controllers, making it an essential tool for advanced UAV builds and autonomous navigation projects.
Ideal for applications where GPS alone isn’t enough, the Holybro PMW3901 Optical Flow Sensor offers reliable visual motion tracking in indoor environments or GPS-denied areas. Whether you’re developing intelligent drones, automated robots, or custom positioning systems, this sensor delivers responsive feedback that boosts control precision, reduces drift, and enhances the responsiveness of your aerial or ground platform.
Compatible with PX4 (PX4 Guide) & Ardupilot (Data format same as discontinued product CX-OF).
| Item Type | Sensor |
| Model | Optical Flow Sensor |
| Input Power | 2.0 – 3.6 W |
| Current | 10 mA |
| Interface | UART |
| Baud Rate | 19,200 bps |
| Frame Rate | 95 Hz |
| Cable Length | 175 mm |
| Dimensions | 37 × 21 mm |
| Weight | 6 g |
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