ulfalfa / rfid-chafon Goto Github PK

When running the code sample I get an error:
TypeError: RFID is not a constructor
It occurs at the second line in my code which is the sample code is thus:

var RFID = require('@ulfalfa/rfid-chafon');
 
let rfid = new RFID('/dev/ttyUSB0');
 
rfid.open()
    .then(() => {
        return rfid.read().then(result => {
            console.log(result);
            rfid.close();
        });
    }).catch(e => {
        console.error(e);
        rfid.close();
    });```

Hi !
This is a great looking library.
I was wondering if you had implemented a card on/off functionnality.

When using PC/SC reader like ARC122U we easily get access to the on/off feature.

I guess we could poll and open close the device, but it looks kind of dumb.

Thanks,

G

I am able to connect to the rfid device ( chafon CF-RU5306 ), I can also send CMDS successfully which already pre-written in demo code ( Nodejs ) , but the issue I am having now is generating the CRC based on Buffer data. Would it be possible to share the also that you worked with please. Here the manual example which I could not replicate in javascript after many tries.
unsigned char CheckSum(unsigned char *uBuff, unsigned short iBuffLen)
{
unsigned char uSum=0;
unsigned short i = 0;
for(i=0;i< iBuffLen;i++)
{
uSum = uSum + uBuff[i];
}
uSum = (~uSum) + 1;
return uSum;
}
Manual reference https://drive.google.com/drive/folders/1GOMv5qGVvhCxKYK_7vSQAX9fz6ssXskk

Hi Ulf.

Thanks for this library.
I try to make it work with this RFID-reader.

https://www.amazon.co.uk/Neuftech-Reader-125KHZ-EM4100-Contactless/dp/B018OYOR3E/ref=sr_1_3?ie=UTF8&qid=1502462938&sr=8-3&keywords=rfid+reader

Could you tell me which reader you used for this project?

Thank you very much!
Philipp

Please can you tell us which device is compatible ?
We would like to rfid reader to read until 5 meters Frequency:865-868Mhz,902-928MHz.
Maybe all of them are compatible? the Portable UHF RFID Bluetooth Reader
Model：CF-H301 for exemple