Review on π Qunqi RC522 RFID RF IC Card Inductive Module: S50 White Card + Key Ring for Arduino - Explore Advanced Contactless Authentication System! by Brandon Garrett
Didn't work - computer components
The first machine I bought worked fine for the first 10 uses, but stopped working after that. I bought a second one hoping it was just defective and the second one was scratched and didn't work at all. Please help me get them working or replace them with ones that actually work. Many Thanks.
- electronics
- old
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