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I brought 860mhz-960mhz UHF rfid reader module for chip card skimmer from follow link:

https://www.alibaba.com/product-detail/860mhz-960mhz-UHF-rfid-reader-module_60312310172.html

I want to do communication with arduino uno so is it possible to connect enter image description here

VCC to VCC GND to GND RX to TX TX to RX

and what is meaning of EN and GPIO if any one know please help me to do serial communication.

asked Dec 11, 2017 at 12:53

1 Answer 1

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Its just a simple RFID module based on UART working on 5V. EN stands for enable, to enable the chip. It has to be connected to VCC too. Because its active high signal. GPIOs are general purpose io pins. No need of them if you are just reading from RFID.

answered Dec 11, 2017 at 16:52
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  • thank you so much I will try to connect these and let you know Commented Dec 12, 2017 at 4:55

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