Won't write/read to card - tried to wipe using GoToTags

[ghost]

Hey there!

I recently found this library and have been trying to get the example to read/write to my card but it keeps erroring. The errors aren't really help as you can see:

> [email protected] example C:\Users\Omar\Documents\Programming\fullstack\nfc-pcsc
> node -r babel-register examples/index.js

08:56:42 info ACS ACR122 0  device attached
(node:2944) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
08:56:44 info ACS ACR122 0  card detected
card:
  atr:
    0:  59
    1:  143
    2:  128
    3:  1
    4:  128
    5:  79
    6:  12
    7:  160
    8:  0
    9:  0
    10: 3
    11: 6
    12: 3
    13: 0
    14: 1
    15: 0
    16: 0
    17: 0
    18: 0
    19: 106
  standard: TAG_ISO_14443_3
  type:     TAG_ISO_14443_3
  uid:      ca318459
08:56:44 error ACS ACR122 0  error when reading data
err:
  name: ReadError
  code: operation_failed
08:56:44 error ACS ACR122 0  error when writing data
err:
  name: WriteError
  code: operation_failed
08:56:53 error ACS ACR122 0  an error occurred
err:
08:56:53 info ACS ACR122 0  device removed
[ <1 empty item> ]
08:59:49 info ACS ACR122 0  device attached
08:59:59 info ACS ACR122 0  card detected
card:
  atr:
    0:  59
    1:  143
    2:  128
    3:  1
    4:  128
    5:  79
    6:  12
    7:  160
    8:  0
    9:  0
    10: 3
    11: 6
    12: 3
    13: 0
    14: 1
    15: 0
    16: 0
    17: 0
    18: 0
    19: 106
  standard: TAG_ISO_14443_3
  type:     TAG_ISO_14443_3
  uid:      ca318459
08:59:59 error ACS ACR122 0  error when reading data
err:
  name: ReadError
  code: operation_failed
08:59:59 error ACS ACR122 0  error when writing data
err:
  name: WriteError
  code: operation_failed

I did join your Discord but I have yet to see you on. Would appreciate some assistance.
Thanks!

[pokusew]

Hi @iamyourabu,

thank you for posting your issue here. 🙂

I've noticed that you are trying to run the main example using npm run example, right?

That example works like this:

1. it waits for a card
2. after detecting a card, it tries to read 16 bytes starting with page 4, assuming page size is 4 bytes (it works well for tags like Mifare Ultralight, but it won't work for all), the read data are printed
3. then it tries to write a random number and overwrites the old data

I think, you are using a different tag/card or your tag/card is not writable (e.g. locked). So you have to make some changes in the code in order to read you tag/card (change page address, page size, data length, ...).

In order we can identify the problem more specifically, could you please provide more details?

• What card (which type – Mifare Classic, Ultralight, DESFire, NTAG or something else?) are you trying to read/write? – that's the most important
• What operating system do you use?  – assuming Windows
• What is your Node.js version?
• What card reader do you use?  – assuming ACS ACR122

---

❗️ Check out my answer on Discord, as well. According to the infomation you provided, you don't need to read/write cards, you can use just card uids.

btw Sorry for my late reply. I am extremely busy now and I must have somehow missed the notification. Usually if someone mentions me, or send me a DM, I'll go online.

So if you need more help, feel free to contact me. 🙂

---

PS Don't forget to star ⭐️ my library, if you find it useful. 😃 Thanks.

[ghost]

Hey @pokusew!

Thanks for responding. Yes, I ran the example to test out the library. In response to your questions:

1. I used a program called GoToTags and apparently the card is a Mifare Classic 1k.
2. Windows 10 for now, will be deploying my final project on a Raspberry Pi though :)
3. My node version is v9.10.1 and my npm version is the latest 5.6.0
4. You are right, I am using the ACS ACR122 👍

I looked at your Discord response, and you are spot on with what I am trying to do. I can just the UID of the cards, but the only reason I don't want to is because on my backend, students have IDs and I'd rather have those on my cards instead. I can just end up using IDs, but just want to try and see if I can figure this out.

Would appreciate the help!
Thanks

p.s i star'd ur library 👍

[kkornwinkel]

Push Please. Have the Same error. What was the Solution for this?

[pokusew]

Hi @kkornwinkel,

are you trying to to run the main example using npm run example or yarn run example?

What card (which type – Mifare Classic, Ultralight, DESFire, NTAG or something else?) are you trying to read/write?

In case, you use Mifare Classic, you have to authenticate to do read/write and you have to pass the blockSize argument to the reader.read and reader.write – you should uncomment appropriate lines in the main example https://github.com/pokusew/nfc-pcsc/blob/master/examples/index.js#L63.

Hope it helps. 🙂

If you encounter any problems, feel free to drop me a line. 😉