Easy to operate, no need to understand complex image recognition algorithms Support for reading of common one-dimensional codes and two-dimensional codes such as Barcode and QR Onboard Micro- USB and UART serial port for access to a computer or embedded device Onboard auxiliary light source for reading in a completely dark environment Support for setting module parameters by scanning the setup code (see the specification for details) Compatibility: All Compatible Camera Equipped: Yes Colour:black Material:Metal + plastic Size:65*28*13.5mm Package Contents: 2 * modules Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.