qoistoochee128

This is a bus card that can summon Unicorn Gundam! ! ! (IC card, ID card, access card

Overview

Based on the improvement of the RFID card from https://oshwhub.com/millol/pcb-card , the bus card/water card/meal card/empty chip , etc. can be welded in the slot, close to the mobile phone with NFC chip bing~ling~bing~ling~ lights up.

Card principle:

The principle is very simple, using induced current to power the chip and LED.
The chip has no positive and negative poles.
Pay attention to the positive and negative poles of the LED.
The chip position is hollow, which is difficult to solder, so you need to pay attention.
Different colors of LED lamp beads have different working voltages, which may cause the chip to not work well after welding the lamp. (It is also related to the transmitting power of the machine)

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-19 02:59:00

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