How to connect scanner using serial port?

General
1

Hi, I'm new to node red. I try to connect my barcode scanner to node red using serial node. But I'm Not sure how to connect it.

2

Does com3 exist? Are you able to access the scanner via com3 with another application?

3

ohh sorry. I was just try to use some method to connect the serial node. Actually I'm trying to find the a way to connect the scanner to serial node and I don't really know how to do it?

4

Are you able to access the scanner from another application?

5

yes I can scan when it connect the to the usb port (to laptop) and ethernet port (to scanner).
it can read the data but now I want to connect the scanner to node red so that I can scan the barcode code, to display the output information(decode) in node red dashboard.

6

Ethernet will probably be the better/easier solution.

You need to read the device manual to determine the Ethernet communication protocol then replicate that in node-red by sending the appropriate characters to Ethernet Port via a TCP Request Node - OR - listening on a TCP In Node (depends on how the device works as would be explained in its manual)

7

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