Hi to everyone, i am not new in arduino programming and projects developments.My friend talked to me about a cool project that consists in detecting the presence of someone in a room and also read some ID (maybe some card, or some bluetooth device) while the persons stays in the room... Let's pick an example to make it clear..The x person has this Card or Bluetooth device in his pocket... when he enters the room the Arduino detects the presence and picks his id that may be stored in the Card... when the person exits the room the arduino detect the person ID is not anymore in the room...Also the arduino should be able to read multiple persons ID presence in the room...Now, I am not asking about making the project... but there is any idea if there is such sensor that can read the ID presence, or maybe some similar project to start with... i want to know if this project is possible do develop ..Thanks in Advance .
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