'How to program an ACR122U NFC reader?
I am having an NFC ACR122U device which I want to program in a way that If I tap a tag/card/mobile phone on it, payment records in database should be updated by $5 on each tap. The problem is that this is my first time programming a hardware device and I am not sure which tool/technology I should use to achieve the desired functionality. Any guidance will be really appreciated.
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