1,Simple operation, no need to understand complex recognition algorithm2,Support the reading of Barcode, QR and other universal one-dimensional codes and two-dimensional codes3,On-board -USB and UART serial ports can be connected to computers or embedded devices4,Support the setting of module parameters by scanning the setting code5,On-board auxiliary , capable of reading in completely dark environment[Self introduction]:I am a barcode QR code scanning and recognition module. I can quickly and accurately read the QR code and QR code on paper or screen through intelligent recognition algorithm.My small size, on-board USB and UART interface, can be directly connected to the computer for use, can also be integrated into various devices.[My Parameters]:Working voltage: 5VWorking current: 135mA (), 58mA (standby), 2mA (sleep)Working temperature: 0 C~60 CWorking humidity: 5%~95% (non condensing)Communication interface: UART, USBSupport one-dimensional code types: Codebar, Code 11, Code 39/Code 93, /, Code 128/EAN128, Interleaved 2 of 5 2 of 5, Code,Industrial 2 of 5,GS1 Databar(RSS)Support QR code types: QR code, Data , PDF417Auxiliary : white lightReading angle: rotation 360 , tilt 65 , deflection 60 Field of angle: 28 (horizontal), 21.5 (vertical)Product size: 53.3mm x 21.4mmColour:blueMaterial:PCB+metalPackage Contents:1 x Barcode Scanner Module1 x USB cable type A male to -type male1 x PH2.0 4PIN connection cableOnly 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.