I previously saw that although open source NFC chips can store energy and light up LEDs, the cost is too expensive. Then I saw an NFC chip that only cost 0.85 yuan/piece (it was still CUID, and the NFC card number can be changed), so I bought 20 of them. Test the water
The purchase link of the chip is in the component parameters of the schematic diagram of the engineering file.
The chip package designed by hand measuring data was then made into a business card. The business card was designed in PS, and then the PCB was drawn in Lichuang according to the PS design. The circuit has no technical content and is very simple.
The fonts used in the design ( the fonts are prohibited for commercial use, otherwise Founder Fonts will send you a lawyer’s letter ) are packaged in the attachment.
The business card size reference is the standard business card 90x54mm, which only needs to be soldered to the NFC chip. Using Jialichuang for proofing can also save the cost of PCB, which is equivalent to buying the chip for only 0.85 yuan (Don't hit me with Lichuang) .
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Attached are a few pictures (the pictures and covers are for personal use, so personal information has been coded)
Rendering renderings
Chip parameters, you can also use this software (name: NFC Tools) to write NFC data (you can automatically add contacts when the phone's NFC detects the card)
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