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How to read raw data from USB Human Interface Device HID

3 posts in this topic

I'm trying to read raw hex data from 2 different USB scales (both show up as HID Human Interface Devices.)  

using hidtrace.exe I got the information below

Scale #1 info VID=0922 PID=8004 (Dymo)
Sample Output: 04 0B FF 15 00

Scale #2 Info VID=0b67|PID=555e (Fairbanks)
Sample Output: 05 0C FE FB FF

 

The closest script I've found seems to be the one in this thread https://www.autoitscript.com/forum/topic/95105-hid-human-interface-device-communications-in-xp/ that uses rawinput.au3 to read from keyboard, mice, or HIDs but I can't figure out what changes I need to make to specify the VID/PID and read the stream from the correct device.  I have one other scale that creates a standard serial port that I can read from no problem but I've never been able to get anything from these HID scales.

Any help would be appreciated.

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Did you follow the examples near end of page 3? It worked for me at that time even if that requires a little bit of guesswork to determine exactly which device is which, especially when your machine has seen several HID devices connected over time. Maybe the "simplest" way is to try intercepting each device one after the other until you find the right one.


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#3 ·  Posted (edited)

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Edited by Melba23
See above

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