PX4FLOW is an intelligent optical flow sensor. The sensor has a native 752x480 pixel resolution, uses a 4x binning and clipping algorithm in process of calculating optical flow, and has a calculation speed of 250Hz (daytime, outdoor), with very high sensitivity. Unlike other mouse sensors, it can work in indoor or outdoor dim light environments at a calculation speed of 120Hz (darkness, indoors) without need for lighting LEDs. You can also reprogram it to perform other basic, efficient low-level machine vision tasks. Hardware specifications: STM32F405, 168 MHz M4F (single precision floating point, 128 + 64 KB RAM) 752x480 MT9V034 image sensor, L3GD20 three- gyroscope 16 mm lens (with integrated IR filter) Dimensions: 45.5 mm x 35 mm Power consumption: 115mA / 5V (The product printed words depending on batch, but this does not affect use) Color:As Shown Material:PCB Package Contents: 1 * 5MP Optical Flow Sensor Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.