QR code tools

echo.py

#!/usr/bin/env python3

import os
import sys

if __name__ == '__main__':
    for line in sys.stdin:
        sys.stdout.write(line)
        if 'keyword1' in line:
            print('play bip 1')
            os.system('aplay /home/pi/Music/bip1.wav >/dev/null 2>&1')
        elif 'keyword2' in line:
            print('play bip 2')
            os.system('aplay /home/pi/Music/bip2.wav >/dev/null 2>&1')

scan.sh

#!/bin/bash

# read QR code from /dev/video0 send decode string to echo python script
zbarcam /dev/video0 --prescale=320x240 --raw -Sdisable -Sqrcode.enable --nodisplay | ./echo.py

setup.sh

#!/bin/bash

# add QR code tools
sudo apt-get install zbar-tools qrencode