[CoolTerm-Betas] CoolTerm and USB HID input to Arduino

[Charles Harris]

Hi

Thanks for add.


I have 2 or more USB stick type RFID readers.  These readers use USB HID 
to automatically input tag reference data, on activation of a tag, into 
a spreadsheet on Linux Mint.  They all have the same pid vid and no 
unique reference for each device.  These work well but they cannot be 
differentiated between readers.

 From what I have seen of CoolTerm it maybe able to help with ID problem.

Is it possible to hook each rfid device to pins in an Arduino, each 
device with its own pins.   This allows an ID procedure.  USB has 4 
pins, the power pins would be connected to power and ground. That leaves 
the 2 data pins, could 1 only be used for  data transfer?

The rfid device would when activated with a tag, automatically places 
the tag data into SD data base for that reader only. Multiple devices = 
multiple columns in SD data base.

Then say periodically (once a minute?) the information is sent from SD 
card to PC or laptop open spreadsheet and in an adjacent column in 
spreadsheet it places an ID that was used by the reader, being the pin 
number or similar ref of Arduino.  This allows for the spreadsheet to 
recognize which reader supplied tag number .

On sending of the data to the pc, the existing data in SD card would be 
deleted ready for next read.

On the USB there are 4 pins  + and -  and 2 data.   How would these be 
connected physically.o

So the end result is getting the tag read from rfid device into Arduino 
(not as per normal into the pc spreadsheet).    Then giving read data 
and ID and send on to pc.   What option would be the best here, and 
simplest,  ethernet, wifi, bt?

Hope you can understand what I am trying to outline.

Charles