Luminous NFC campus card meal card

Introduction to the renderings.
I forgot what project I used to refer to before. I just remember that I changed it to a double coil and added perforations.
The rendering is a screenshot I took from a video I posted before, and it’s not that clear.
Before making this version, I tried another single-coil version, but due to instability, the meal card was frozen or some low-power card swiping phones could not swipe normally, so I changed it to a double-coil.
This dual-coil version works pretty well, but the number of coil turns may need to be adjusted again. Unfortunately, I didn't have time in the second semester of my senior year of high school, so I didn't improve it. Now that I don't need physical cards in college, I just swipe QR codes, so I'm too lazy to change it.
Previous video: BV1gd4y1A7ef
material
LED uses SMD 0805 specifications.
The IC chip model seems to be 5577. Of course, you can also remove the chip directly from the original card.
For details, you can check out the video I posted before. I can’t remember so much.