RF MODULES
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RC522 RFID Reader Module with Tags – 13.56MHz Contactless Identification Kit -
433Mhz RF Wireless Transmitter Receiver Module -
NRF24L01 2.4GHz Wireless Transceiver Module – High-Speed, Low-Power RF Communication -
2.4GHz NRF24L01+ PA+LNA Wireless Transceiver Module with SMA Antenna – Long-Range RF Communication