Make, model and a link to the specs of your barcode reader would help... While it's beem quite some time since I last did anything with barcode readers it was my experience that most appeared on the system as USB keyboard devices though things may have changed since then. Back then pretty much all ...

Bluetooth Laser Barcode Scanner from Tao Tronics (www.taotronics.com) Model TT-BS022 Raspberry Pi 4 detects it as a keyboard and I can see /dev/hidraw2 appearing and disappearing after connecting and disconnecting the barcode reader respectively. import sys hid = { 4: 'a', 5: 'b', 6: 'c', 7: 'd', 8:...

Goal: Read using Barcode-scanner and process the information (Check the received code is correct and take decisions accordingly) Problems: Error 13: permission denied opening/dev/hidraw0 [which can be solved with sudo permission ] import sys fp = open('/dev/hidraw0', 'rb') simply display the number ...