The Barcode scanner module series products are barcode two-dimensional code scanning recognition modules. Through the intelligent recognition algorithm, it can quickly and accurately read -dimensional code and two-dimensional code on paper or on the screen, and supports multiple barcode formats. The module is equipped with USB and UART interfaces, which can be directly connected to a computer or integrated into various embedded devices. Barcode scanner Module (B) can support recognition of more barcode formats, and supports 4mi high-density barcode scanning. Easy to operate and durable. Resolution: 640x480 Scanning angle: pitch 65, tilt 65, rotate 360 mode: induction , continuous , button (default) Accuracy: 4mil Communication interface: USB keyboard mode (default), USB virtual serial port, UART serial port white light illumination, red light (both visible light) : white light illumination, red light (both visible light) Voltage: 5V or 3.3V Working current: 262mA Current standby current: 75MA current: 108mA Working temperature: -20-and60C Temperature Storage temperature: 30-and70C Colour:blue Material:PCB Package Contents: 1 x Module 1 x USB Cable 1 x PH2.0 4PIN Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.