{"product_id":"pmw3901-optical-flow-sensor-module-cjmcu-3901-xy-translation","title":"PMW3901 Optical Flow Sensor Module CJMCU-3901 XY","description":"\u003ch2\u003ePMW3901 Optical Flow Sensor Module – CJMCU-3901 XY Translation\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePMW3901 Optical Flow Sensor Module (CJMCU-3901)\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePMW3901 Chip:\u003c\/strong\u003e Industry-trusted optical flow IC for reliable XY motion tracking on a variety of surfaces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact CJMCU-3901 Board:\u003c\/strong\u003e Breakout-style PCB with SMD components for easy integration into your project\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eXY Translation Detection:\u003c\/strong\u003e Measures horizontal and vertical surface movement with high accuracy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSPI Interface:\u003c\/strong\u003e Simple 4-wire SPI communication for straightforward microcontroller integration (Arduino, STM32, Raspberry Pi, etc.)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e Optimized for battery-powered and portable applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Application Range:\u003c\/strong\u003e Ideal for drones, robotics, indoor navigation, and DIY embedded projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMD Construction:\u003c\/strong\u003e Each order includes fully assembled SMD board ready for use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor:\u003c\/strong\u003e PMW3901MB Optical Flow Sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e SPI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 3.3V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotion Detection:\u003c\/strong\u003e XY Translation (2-axis)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × CJMCU-3901 Optical Flow Sensor Module (SMD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY drone \u0026amp; quadcopter builds requiring optical stabilization\u003c\/li\u003e\n  \u003cli\u003eIndoor autonomous robot navigation\u003c\/li\u003e\n  \u003cli\u003eEmbedded systems and microcontroller projects\u003c\/li\u003e\n  \u003cli\u003eMakers, hobbyists, and electronics engineers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003ePair this module with other electronics essentials from our store — check out the \u003ca href=\"\/products\/full-color-rgb-led-module-single-chip-5050-water-light-for-smart-car-robotics-applications\"\u003eFull-Color RGB LED Module for Smart Car \u0026amp; Robotics\u003c\/a\u003e or explore our \u003ca href=\"\/products\/round-aluminum-wire-diy-jewelry-making-1mm-3mm\"\u003eRound Aluminum Wire for DIY Projects\u003c\/a\u003e to complete your build.\u003c\/p\u003e\n\n\u003cp\u003eAlso browse our \u003ca href=\"\/products\/glow-in-the-dark-natural-stone-round-beads-diy-jewelry-making\"\u003eGlow in the Dark Natural Stone Beads\u003c\/a\u003e for creative DIY inspiration across your projects.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the PMW3901 Optical Flow Sensor Module CJMCU-3901 used for?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: What interface does the CJMCU-3901 optical flow sensor use?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: What voltage does the PMW3901 sensor module operate at?\u003c\/h4\u003e\n\u003cp\u003eA: The PMW3901 CJMCU-3901 module operates at 3.3V, making it suitable for low-power embedded and battery-operated applications.\u003c\/p\u003e\n\u003ch4\u003eQ: What is included in each order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes one fully assembled CJMCU-3901 PMW3901 Optical Flow Sensor Module with SMD components, ready for integration into your project.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the PMW3901 Optical Flow Sensor Module CJMCU-3901 used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PMW3901 CJMCU-3901 module is used for optical flow detection — measuring XY translational surface movement. 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