The Holybro PMW3901 Optical Flow Sensor is a UART version of the PMW3901 module with built-in BEC. It comes pre-solder with a 6-pin JST GH connector made to connect right to TELEM ports on most flight controllers. Compatible with PX4 (PX4 Guide) & Ardupilot (Data format same as discontinued product CX-OF).
Features:
- Compact and high-performance optical flow sensor.
- Accurate motion tracking and velocity estimation.
- Utilizes image flow data for enhanced stability.
- Ideal for drones and robotics.
- Lightweight design for easy integration.
- Efficient algorithms for real-time measurements.
- Improves spatial awareness and navigation precision.
Specification-
| Input Power | 2.0 to 3.6 |
|---|---|
| Current(mA) | 10 |
| Interface | UART |
| Baud Rate (bps) | 19200 |
| FPS | 95hz |
| Cable length (mm) | 175 |
| Length (mm): | 37 |
| Width (mm): | 21 |
| Weight (g): | 0.6 |
| Shipping Weight | 0.01 kg |
| Shipping Dimensions | 10 × 8 × 1 cm |
Package Includes:
1 x Holybro PMW3901 Optical Flow Sensor
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Read More →Technical Specifications
| Brand | Holybro |
|---|---|
| Model | PMW3901 |
| SKU | AI5713 |
| Weight | 0.0598 kg |
| Availability | In Stock |
Applications & Use Cases
The Holybro PMW3901 Optical Flow Sensor is a versatile pir / ir and optical sensor used across a wide range of applications including motion detection, security systems, automatic lighting, people counting, and gesture recognition.
Common use cases:
- Building an automatic porch light
- Creating a people counter for a room
- Adding motion detection to a security system
This product is ideal for home automation builders and security system designers.
Technical Tip: PIR sensors detect heat-emitting movement. Adjust sensitivity and delay potentiometers for your environment. False triggers can be reduced with proper shielding.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Holybro product sourced from authorized channels
Uday Dhillon –
This Holybro PMW3901 Optical Flow Sensor is excellent for the price. My data logging project is working perfectly now.
Karan Panchal –
This Holybro PMW3901 Optical Flow Sensor is a must-have for sensor projects. Plug and play with Arduino.
Deepak Luthra (verified owner) –
Nice Holybro PMW3901 Optical Flow Sensor. Readings are mostly accurate. Good enough for my hobby project.
Aman Kumar –
Love this Holybro PMW3901 Optical Flow Sensor. Response time is fast and readings are stable.
Krishna Solanki (verified owner) –
Outstanding accuracy from this Holybro PMW3901 Optical Flow Sensor. Compared with a professional instrument, readings match closely.
Ananya Vyas (verified owner) –
Pretty good Holybro PMW3901 Optical Flow Sensor. Documentation could be better but the sensor itself is solid.
Sandeep Krishnan (verified owner) –
Perfect for my weather station. This Holybro PMW3901 Optical Flow Sensor gives consistent readings day and night.
Aisha Bisht (verified owner) –
Good quality Holybro PMW3901 Optical Flow Sensor. Some variation in readings but within acceptable range.
Vipin Mukherjee –
Perfect for my weather station. This Holybro PMW3901 Optical Flow Sensor gives consistent readings day and night.
Aisha Kapoor (verified owner) –
Decent Holybro PMW3901 Optical Flow Sensor for the price. Requires proper wiring but works well once set up.
Milan Shetty –
Excellent sensitivity and range on this Holybro PMW3901 Optical Flow Sensor. Works better than I expected.
Vivek Dhawan (verified owner) –
This Holybro PMW3901 Optical Flow Sensor is excellent for the price. My data logging project is working perfectly now.
Dhruv Dhawan (verified owner) –
Average Holybro PMW3901 Optical Flow Sensor. Readings fluctuate a bit. Works for rough measurements.
Eshan Pillai –
Okay Holybro PMW3901 Optical Flow Sensor. Had to add a capacitor to stabilize readings. Works now.
Vansh Mehta (verified owner) –
Perfect for my weather station. This Holybro PMW3901 Optical Flow Sensor gives consistent readings day and night.
Lalit Iyer (verified owner) –
Outstanding accuracy from this Holybro PMW3901 Optical Flow Sensor. Compared with a professional instrument, readings match closely.
Jai Sen –
This Holybro PMW3901 Optical Flow Sensor is a must-have for sensor projects. Plug and play with Arduino.
Atharv Pandey (verified owner) –
This Holybro PMW3901 Optical Flow Sensor is excellent for the price. My data logging project is working perfectly now.
Rahul Tiwari (verified owner) –
Pretty good Holybro PMW3901 Optical Flow Sensor. Documentation could be better but the sensor itself is solid.
Sneha Rawat (verified owner) –
Pretty good Holybro PMW3901 Optical Flow Sensor. Documentation could be better but the sensor itself is solid.
Diya Dave (verified owner) –
Perfect for my weather station. This Holybro PMW3901 Optical Flow Sensor gives consistent readings day and night.
Ojas Mishra (verified owner) –
Love this Holybro PMW3901 Optical Flow Sensor. Response time is fast and readings are stable.