search

sui77 / rc-switch

Arduino lib to operate 433/315Mhz devices like power outlet sockets.
1.89k stars 653 forks source link

how we can use 433&315 in one device ? #442

Open mrdsn3 opened 2 years ago

mrdsn3 commented 2 years ago

Hi I need to build universal RF control how can I define multi instance or use any other way for supporting both signals

NorthernMan54 commented 2 years ago

This is feasible using a CC1101 transceiver module, and is part of the openMqttGateway firmware package. OpenMqttGateway leverages rc-switch

lethevimlet commented 2 years ago

This is feasible using a CC1101 transceiver module, and is part of the openMqttGateway firmware package. OpenMqttGateway leverages rc-switch

How exactly can that be achieved with a CC1101? Could you provide an example with dual 433/315 support at the same time?

NorthernMan54 commented 2 years ago

With a CC1101 device, you can only listen/receive to one frequency at a time, but can transmit to a different one. And can listen with one protocol and transmit with another. I use this to listen with rtl_433 on 433 Mhz for my Acurite temperature sensors, and control my RF devices on 315Mhz

kelogs commented 1 year ago

@NorthernMan54

May I know what sort of antenna setup you are using ? Thank you

NorthernMan54 commented 1 year ago

This was likely a CC1101 connected to an ESP32

image

kelogs commented 1 year ago

So external SMA antennas, i can see two distinct types in there. Can the same antenna do both 315 and 433 MHz without much performance hit ?

NorthernMan54 commented 1 year ago

Personally I find the range of those transceivers is pretty limited, typically a few feet or so. If you can work thru the range issue, they do work.

kelogs commented 1 year ago

Got it!