I need a program that you import a list into (CSV), then barcodes are scanned with a scanner, containing the contents of the list. If a barcode is skipped or scanned in the wrong order I need it to click a relay. I am going to use this for a mail house to ensure that mail is kept in the correct order throughout the production process .
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i can write you a python program that beeps or energize a relay when CSV and barcode scanners do not match. also a simple web interface for uploading CSV file.