Physical barcode scanner on homeassistant add-on about barcodebuddy-homeassistant HOT 3 OPEN

Any news on this? I'm also looking for a solution

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Overview of solution

If you have a USB barcode scanner, like the Bur3069-2d wireless USB barcode scanner that I'm using, you only need to expose the /dev/input/eventX device as in the Barcode Buddy Docker Documentation to the Docker container. This is done via the config.json by forking this repository and making the change.
Here is my change to the config.json

  "devices": [ "/dev/input/event0" ],
  "environment": {
    "ATTACH_BARCODESCANNER": "true"
  },

I have no idea how Homeassitant works under the hood so I don't know if there's a way to expose those config.yaml variables to the UI to allow the user to set their input, but that would be one way to make this easier for users. I started looking at these docs, but they only scratch the surface. I'll keep looking but hopefully someone with a better working knowledge of HA can chime in.

Determining your input device

If you are running on a Raspberry Pi without a keyboard, mouse, or anything other than the barcode scanner that might show up as an HID device, then you can stick to using /dev/input/event0. Otherwise, you'll have to figure out which event device to use.

# ls -l /dev/input/event*
crw-rw----    1 root     input      13,  64 Sep 19 02:07 /dev/input/event0

You can verify that the device is your barcode scanner by dumping the device on your screen and scanning a barcode. If you see a bunch of garbage after pulling the trigger, you'll know you have the correct device; you might want to try if you have more than one device to ensure the output isn't a coincidence.

# cat /dev/input/event0
M'cc    ��%M'cc �       �M'cc   M'ck    ��%M'ck �       M'ck    M'cs    ��#M'cs ��M'cs  M'c?{   ��#M'c?{        �M'c?{  M'cU    ��'M'cU ���M'cU M'c    ��'M'c ��M'c  M'c
��'M'c  ���M'c  M'c>    ��'M'c> ��M'c>  M'c     ��'M'c  ���M'c  M'c     ��'M'c  ��M'c   M'c     ��#M'c  ��M'c   M'c     ��#M'c  �M'c    M'cc    ��#M'cc ��M'cc  M'cL    ��#M'cL     �M'cL   M'c�    ��'M'c� ���M'c� M'c     ��'M'c  ��M'c   M'c     ��#M'c  ��M'c   M'c~    ��#M'c~ �M'c~   M'c1    ��$M'c1 �M'c1   M'c�    ��$M'c� M'c�    M'c     ��'M'c      ���M'c  M'c

Root access

For troubleshooting or if you have more than one input device, you'll need SSH root access to the Raspberry Pi and HomeassistantOS; this was an infuriating process for me trying to follow the official developer documentation scouring the forums until I ran across the HassOS SSH Port 22222 Configurator. Using that approach worked for me, the only trick there is that you must disable "Protection Mode" for it to work. After you run it without protection mode, you only need to hard reboot twice to get SSHD to come up and ready to accept your private key.

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Hi, any update to this feature? I want to add USB barcode scanner to this addon.

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