This 2D barcode scanner module engine use the high end decoding technology and the reading accuracy is higher than many laser scanning engines which can fast reading all kinds of barcode(all standard 1D as well as PDF417, QR Code.Data Matrix. ). Besides high brightness LED lighting, dark environment can also easily read the bar code.
And this Embedded 2D Barcode Scanner module compatible with android and IOS tablets ,which make it popular use in retail store ,restaurant order and other industries .
Qr Code Scanner Module can support USB-HID. USB-COM and RS232 interfaces and easy to switch only by change the cable , the error rate is low to 1/5million ,and the precision can up to 3mil .
Small size, suitable for various scanners embedded
Fast and accurate code reading
Compatible with various systems（Linux Android Windows XP MAC …..）
Support all standard 1d barcodes and 2d common barcodes like QR ,DM and PDF417
Q1. Fail to read barcodes.
A. Some barcode types don’t set to be read as factory default. Please check whether you enable this function.
B. The barcode is not correct. Please generate a new barcode.
C. There’s direct sunlight on the barcode and the photoreceptor becomes saturate. Please avoid direct sunlight.
D. There’s transparent material covered on the barcode. The high reflectance will influence the decoding performance.
E. Hardware failure: defective engine board.
Q2. Can read barcodes, but can’t upload data.
A. Please check whether the cable is connected well.
B. Please check whether the settings of PC port and serial scanning are the same.
C. If it is wireless barcode scanner, please check if it is paired well with the computer.
Q3. There’s no electricity of the barcode scanner.
A. PC insufficient electricity supply or external power source failure.
B. Hardware failure: defective cable or mainboard.