Send data from RFID reader to app/arduino

Projects General Guidance
1

Hello,
I'm new to Arduino and I had difficulties on finding solution for a problem in my project.
I want to attach RFID module (MFRC-522) to a wireless "tower" which will include batteries.
I need this tower to send signal when it reads a chip. The signal can be sended to the arduino board or to android app, doesn't really matter.
I wonder how do I do it wirelessly, because as far as I know, I need to connect the RFID reader to the arduino board.
Is there a way to do it over BT?

Thanks

3

First of all, thank you for your quick reply.
I know I will need some extra hardware on the tower. Is it possible to do so without adding another arduino board on the tower?
Is there an RFID reader module with BT/WIFI capabilities?

Thanks.

5

Delta_G:
Sure. There are lots of microcontrollers that aren't Arduino. Get a PIC if you don't like Arduino. Technically the ESP-8266 is not an Arduino.

I don't want to avoid specifically arduino boards. If i have to add microcontroller I'd prefer it will be arduino because it's an arduino project. If that is the case, arduino nano wil be good option for me, doesn't it?

Thanks.

P.S.
The original way I wanted to deal with that was that the tower will be passive (rfid chip and not reader) and the tower base will be with rfid reader and connected to the arduino board with cables. The problem is we need like 15 tower bases, and that is a lot of I/O to handle concurrently.

7

Sorry for the misunderstanding.
My question was if I could send the signal wirelessly to the main arduino board without needing extra micro-controller for each tower. I wrote "without an arduino" because that is the only micro-controller i know so far.

How does that reader communicate?

In that solution the reader is connected to the main Arduino board (I thought about Arduino Mega because it has many I/O ports)

Thanks.

8

My question was if I could send the signal wirelessly to the main arduino board without needing extra micro-controller for each tower.

So that will be a no then unless you get fancy.

If you select a reader with a Wegand output and then send each of the two outputs to an NE555 timer to generate two tones. Then transmit those two tones with an FM transmitter, in the proper data band, you could, possibly receive this and decode it like the old fashioned modem transmitters. But it is a lot more hassle than using a micro controller.