I have some devices that I know are 433mhz and I am not able to pick them up with rc-switch on an arduino even using raw data. What would cause this? Is there anything I can do to receive these signals? Thanks.
Hi there,
maybe you are using a device with “rolling-code”?
I’m using an ESP8266 in combination with this:
https://github.com/puuu/MQTT433gateway
works like charm.
The only thing you can’t decode directly are protocols, not supported by plight.
In this case see the code in RAW Mode.
You can connect via MQTT to use it in HA.
Maybe this helps.
It isn’t a problem decoding it, its a problem that I don’t receive any data at all. I am using the rc-switch library with the advanced example which dumps raw data and nothing shows up.
Some devices use Frequency Shift Keying (FSK) for modulation at 433MHz, whereas most use On Off Keying (OOK). If your sender uses FSK you won’t be able to decode it with an OOK receiver.
See http://www.rfwireless-world.com/Terminology/OOK-vs-FSK-vs-ASK.html
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Ahhh okay gotcha that makes sense. So do you have any recommendations on an Arduino compatible FSK and OOK receiver?
Well I just bought one of these https://www.amazon.com/gp/product/B01F2MWYF4/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1 and saw that openmqttgateway already supports the RFM69 so hopefully this will be pretty easy to set up.
I think that was the chip (RFM69) I knew about. It is used in the Energenie board for the raspberry pi I use to control my TRVs and lights - which is why I knew about FSK vs OOK.
FSK is used to control the TRVs with two way communication and OOK is used to control lights.
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Cool thanks.
If i remember the rc-switch code correctly, there is no real raw-mode receiving. It will always match against a list of protocols in RCSwitch.cpp.
What protocol/product do you want to receive from?
Trying to get data from a simplisafe v2 door/window sensor and motion sensor.
Did you get this to work ok?
Yeah, using a rtl-sdr USB device I am able to pick them up.
Hey w1ll1am23, i’m dealing with a FSK RF remote, can you send a link to exactly what you bought to be able to control it via Home Assistant?
I’m not controlling any devices, but I am picking up signals from simply safe sensors using one of these.
RTL-SDR Blog V3 R820T2 RTL2832U 1PPM TCXO HF Bias Tee SMA Software Defined Radio with Dipole Antenna Kit https://www.amazon.com/dp/B011HVUEME/ref=cm_sw_r_apan_glt_fabc_31YMQQ19DRWHVJ6NGPK3
Ah I see…do you know if there’s a way to take it a step further and actually be able to mimic an FSK remote so I can integrate it into Home Assistant?
I’m starting to give up hope that it’s possible…
Here’s the spec sheet of the remote, for reference…433.92MHz FSK for motorized blinds.
https://fccid.io/2AU29AMP15REM/User-Manual/user-manual-4713468.pdf
Have you tried something like a broadlink rmpro?
I’ve tried both a Sonoff RF Bridge and a Broadlink RM4 Pro. Neither are able to capture the commands from the remote, which I assume is because they are rolling codes.
Dang, well not sure what can be done. Only other option I see is hooking up a microcontroller with a relay or something to the remote and sacrificing it. You’d lose the remote then though.