PMW3901 Optical Flow Sensor Module – CJMCU-3901 XY Translation

The PMW3901 Optical Flow Sensor Module (CJMCU-3901) is a compact, high-performance optical flow sensor designed for precise XY translational motion detection. Whether you're building autonomous drones, robotics platforms, or embedded navigation systems, this module delivers accurate, low-latency surface tracking without the need for GPS.

Key Features

PMW3901 Chip: Industry-trusted optical flow IC for reliable XY motion tracking on a variety of surfaces
Compact CJMCU-3901 Board: Breakout-style PCB with SMD components for easy integration into your project
XY Translation Detection: Measures horizontal and vertical surface movement with high accuracy
SPI Interface: Simple 4-wire SPI communication for straightforward microcontroller integration (Arduino, STM32, Raspberry Pi, etc.)
Low Power Consumption: Optimized for battery-powered and portable applications
Wide Application Range: Ideal for drones, robotics, indoor navigation, and DIY embedded projects
SMD Construction: Each order includes fully assembled SMD board ready for use

Specifications

Sensor: PMW3901MB Optical Flow Sensor
Communication: SPI
Operating Voltage: 3.3V
Motion Detection: XY Translation (2-axis)
Package Includes: 1 × CJMCU-3901 Optical Flow Sensor Module (SMD)

Perfect For

DIY drone & quadcopter builds requiring optical stabilization
Indoor autonomous robot navigation
Embedded systems and microcontroller projects
Makers, hobbyists, and electronics engineers

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Frequently Asked Questions

Q: What is the PMW3901 Optical Flow Sensor Module CJMCU-3901 used for?

A: The PMW3901 CJMCU-3901 module is used for optical flow detection — measuring XY translational surface movement. It is widely used in drones for position hold, indoor robots for navigation, and embedded systems that require motion sensing without GPS.

Q: What interface does the CJMCU-3901 optical flow sensor use?

A: The module communicates via SPI (Serial Peripheral Interface), making it compatible with popular microcontrollers such as Arduino, STM32, ESP32, and Raspberry Pi with minimal wiring.

Q: What voltage does the PMW3901 sensor module operate at?

A: The PMW3901 CJMCU-3901 module operates at 3.3V, making it suitable for low-power embedded and battery-operated applications.

Q: What is included in each order?

A: Each order includes one fully assembled CJMCU-3901 PMW3901 Optical Flow Sensor Module with SMD components, ready for integration into your project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.