hell yeah, I've made a whole useless product like that! In lab, we had OLED display powered by NFC too, and touchscreen e-ink tetris device, and spot welder lol. Nobody believed me it's possible, even engineers who worked with me, might be I was the first one to come up with this hack.
This is how tap to pay cards work IIRC. Secure storage chip, transceiver chip, NFC coil, boom
this post was submitted on 06 May 2026
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