Barcode Application Ideas


I am thinking of implementation to track a product along the production line by scanning a barcode on each of the different steps. Any idea what input device I may need and how to get the data into groov System?


Here at Opto we found a USB barcode scanner that emulated a HID (Human Interface Device - aka, a keyboard) and used the Node (and followed to the letter the instructions on the same page) here;

This gave us the barcode into the flow each time we scanned, from there, it was a matter of writing the Node-RED flow to do the job we needed.

Note. We also found a Bluetooth scanner that we could not get working with the groov EPIC.


I’ve used RS232 serial barcode scanners for many years. Manufactures can provide different interface cables depending on your needs, such as USB or RS232. If the barcode is in the same position on the product, you can setup a fixed mount scanner to read continually. It will transmit the code as soon as it reads it. If the position of the barcode is not known, you’ll need a wide-field imaging scanner or even a scanning tunnel to scan every side of the package (which can get very expensive).

Note that RS232 distance is limited. I try not to exceed 30 feet at 9600 baud.


We used RS-485 scanners (longer cable runs) on conveyors to track bar codes on boxes at fairly high speed. We read it into PAC controllers which of course can get it to groov. In our case we used Allen-Bradley scanners but as Joey said other companies make them as well.


We use SICK barcode readers. They have a bunch of different output/protocol options. They even have QR code readers that are pretty fast.


Hi guys,

I am actually thinking of a wireless handheld barcode reader, for operator to scan on different area of production, where barcode data will be send to opto22 and determine which area it is. Our product is relative huge in size.

Specifically, I am trying to grasp how wireless barcode system typically works. Looking for some kind of wireless PLC barcode receiver…

wireless barcode scanner -> wireless receiver with rs232 port -> SNAP PAC rs232 module?

I am still looking for Wireless barcode scanner that comes with receiver with rs232 port.


As long as the wireless barcode scanner has an API, I don’t see why you cant use a fully wireless one.
No need to go to serial?
The groov could talk via a comm handle and PAC Control to it (since it will have an IP address), or you could possibly use Node-RED since it has an HTTP node…

Or am I missing something?


Thank you Ben, I will look at this.