Reading contactless payment with Arduino

Projects General Guidance
1

Ok, I have seen the posts by a chap who wanted to use Arduino as a contactless payment system...... And, no, I do not want to do this.....

I have been playing with RFID and my laptop, with the aim of using it to unlock my office pc. I have had success with this, and it is really quite simple.

But I want to use a contactless payment card as the NFC tag. The reason for this is to ensure that I cannot be requested to leave a login card when I am away from the office. If it is my bank card I am using, then I have a justifyable reason not to leave it to allow others access to my PC.

This is due to some security concerns. Can this be done?

2

Seems ill advised, especially if you store info from your bank card in an Arduino or on an office computer.
Just use a separate NFC card and keep it in your wallet.

3

And glue it to an old (non-NFC) bank card to make people THINK it is your bank card. :slight_smile:

4

yes. Why do you think it can't be done?
A bank card has a 7 byte UID like other nfc cards have. If you just rely on the UID of a NFC tag, you can rely on the UID of the bank card also.