sbcshop2 / pi-barcode-hat

Barcode HAT for Raspberry Pi is a robust and compact barcode scanner board that consists of a DE2120 scanner module, buzzer, 1.14” LCD screen, micro-USB port. It is designed to scan 20 different barcode symbiology in the segment of both 1D and 2D symbiology like barcodes and QR codes.

Pi-Barcode-HAT

Barcode HAT for Raspberry Pi is a robust and compact barcode scanner board that consists of a DE2120 scanner module, buzzer, 1.14” LCD screen, micro-USB port. It is designed to scan 20 different barcode symbologies in the segment of both 1D and 2D symbology like barcodes and QR codes.

Enable the SPI first in raspberry pi, for this go to cmd then type sudo raspi-config then go to ->interface option -> SPI - YES

Setup Pi Barcode HAT

First, you need to change the mode of the Pi Barcode HAT. Put Barcode HAT at the top of the raspberry pi, then you need to scan the below barcode settings before running the code

• Mode is TTL/RS232 (serial communication interface(UART)) for this you need to scan below the barcode, Connect USB to Barcode Hat For Raspberry Pi.

• Change the baud rate to (9600) for this you need to scan the below barcode by pressing the scan button on the Barcode Hat For Raspberry Pi.

Use Pi Barcode Hat without Raspberry Pi( Via USB Cable )

For this you need to scan below barcode settings

For USB COM Mode sacan below barcode

Working

Applications

First of all, move all the files from the applications folder to the outside folder which is the Pi-Barcode-HAT folder, so that main.py could access the files in the lib sub-directory

• Pins of the ultrasonic sensor (we use this sensor to avoid pressing the push button to scan the barcode ), we use 3v ultrasonic sensor
  • Trig is connected to GPIO 4
  • Echo is connected to GPIO 17
• Servo motor
  • Servo motor pin is connected to GPIO 2

Working of Applications

• Smart shopping

• Smart Library Management System

• Smart Attendence System