USB Opener for POS Cash Drawer

this is a simple python script to open a cash drawer connected by USB (or using a USB adapter)

Dependencies

sudo apt install python3 python3-pip
sudo pip3 install PyQt5 pyserial pynput

How to use

python3 opener.py

launch opener.py and modify your COM number.
Open Drawer Using F12

Different Drawer :

the default codes used for opening the cash drawer are the standard and should work for most drawers.
in case your drawer isn't opening when you're positive that the COM is correct, change CODES in info.conf to one of the following :

    [27,112,0,25,250]
    [27,112,0,48,251]
    [27,112,1,49,251]
    [27,118,140]
    [27,112,0,50,250]
    [27,112,48,55,121]
    [27,112,0,64,240]
    [27,112,0,25,255]
    [27,112,0,40,168]
    [27,112,0,48,49]
    [27,112,32,25]
    [27,70,0,50,50]
    [27,112,0,25,251]
    [27,112,48,25,250]