Chapter I Scanning Guide - Waveshare Barcode Scanner Module B Setup Manual

CHAPTER I SCANNING GUIDE

The aiming auxiliary light source for the Barcode Scanner Module (B) projects a red aiming light
speed corresponding to the horizontal field of view of the module. The aiming line should be in the
center of the barcode and the user can rotate the light, but please keep it in the center of the
barcode for easy reading.
Bar Code 2D Codes
The aiming beam or pattern is smaller when the module is close to the barcode and larger when it
is farther away from the barcode. Smaller barcodes should be read close together. Larger barcodes
should be read away from the barcode. To read single or multiple barcodes, hold the scanner
module at the proper distance from the target, press the button, and then place the aiming beam
or pattern on the barcode. If the barcode being scanned is reflective, it may be necessary to tilt the
barcode up 15° to 18° to prevent light reflection.
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