I have two arduino uno r4 wifi's and 2 rdm6300's. I want to relay a low frequency signal wirelessly. One I want to receive the rfid signal then I want the arduino uno r4 wifi to relay this exact signal to the other arduino uno r4 wifi to transmit the same signal with the other rdm6300. How would I do this?
Please explain what you mean by this.
I want to receive a rfid signal, relay it wirelessly, then on that device transmit the same exact signal simultaneously.
The Arduino itself cannot receive an RFID signal. An RFID reader does that.
I know. That is why I have the rdm6300 connected to it.
I have two rdm6300 connected to each Arduino. I need to know how I can relay the signal with this wirelessly. Both arduinos are Arduino Uno R4 Wifi.
Do you not understand what this line means?
An Arduino can't send an RFID signal, either.
You can, however, send to another Arduino the information received from an RFID reader.
The RDM6300 appears at first blush to be an RFID reader. Is it capable of outputting the raw RF signal to a processor?
Regardless of the answer to that question, no Arduino I'm aware of (including your R4 WiFi) has the ability to read an RFID signal, let alone retransmit it.
As @jremington has already pointed out, transmitting the information is a completely different question. But you asked about the signal, specifically. And the answer to that is no.
Do you want to relay the RF signal or do you want to send the DATA that is carried by the RF signal?
I want to relay the RF signal
Sorry, but that would wipe out the RFID receiver because it is designed for a VERY WEAK signal. What frequency is your RFID reader? Can you build a transmitter and receiver to do the relaying since they are not something that is commercially built. There is no market.
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Not possible.
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Is there any possible way i can do it using something else? I have tried using a hackrf and all but the frequency is too low for it.
IF the signal is strong enough, you might build a mixer to mix the low frequency with a usable higher frequency and transmit the resulting product frequency. But that might need a commercial license.
How often will you need to do this? once a second, once a minute, anytime? And what distance?
To transmit the resulting frequency would I just use a amplifier after the IF?
Don't car thieves use something in this vein nowadays to relay the signal from a key fob in someone's living room to the car parked in their driveway? I'm sure hardware designs for such things are available somewhere on the dark web.
Yes, And reverse the process at the receiver end to arrive at a copy of the original signal. Measure the RFID signal strength at your current receiver to see if there is enough RF to work with.
Any good rf oscillators you know of?
First decide on the legal frequency you want to use for the relay!
2.4 ghz