hi. how can I increase the read range of passive RFID reader about 5m? I am planning to use MFRC522. do I need to connect with external antenna? if can, what is the suitable antenna can be use?
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hi. how can I increase the read range of passive RFID reader about 5m? I am planning to use MFRC522. do I need to connect with external antenna? if can, what is the suitable antenna can be use?