The design of the bar code scanner used so elegant solution that I think about it would be interesting to read even for those who never have to use it.
Handheld bar code scanner is needed for those who are engaged in business, but there are exceptions (I bought it, so as not to enter barcodes hands in Lamptest base).
I used to think that to use the barcode scanner need some special program, it appears that the computer is a scanner a conventional keyboard (standard USB-HID device) and simply passes the computer barcode numbers as if they were typed on the keyboard.
This allows you to use the scanner with absolutely any program from Excel, where I was, and I bring the data on the lamps.
I have caused the admiration of how the scanner is configured. Included with the book it comes with barcodes.
Each barcode - any setting. To activate it, you just need to scan the appropriate bar code. I set up the scanner so that it "pushed" Enter after typing the barcode (so you can enter a lot of bar codes into Excel, without touching the keyboard and mouse).
My scanner cable has a length of 175 cm and is connected to the scanner connector. The set was only the book scanner and barcode settings.
In the scanner mechanical unfolding (inside the motor rotates the mirror and forms a band).
I bought on Aliexpress the cheapest scanner, which has found. He was sold as a ring, in fact came YHD-8200.
Now that the seller, who bought me, they are no more, and the lowest price for this model $13.87. Other scanners are there from $11.5 and most likely they work in the same way.
© 2018 Alex Nadozhin