I have myself a Raspberry pi and Arduino which I've equipped with a 433mhz transmitter (to the arduino) and a 433mhz receiver to the Pi.

I can read the output fine from the transmitter in Pi console so I know that my wiring and set-up is correct, however I'm having trouble detecting anything at all from my RF remote control which is used for RF power sockets.

My remote is 433.92mhz and I know that is works, as I always use it.

I'm just not picking up anything at all, I tried looking for different pulse rates but I was literally just guessing numbers so I don't think I was ever going to get anywhere with that.

What would be the best way of debugging this without having to buy additional modules or equipment ? (I've already spent a fair bit on this)

  • It is hard to tell as the remote might have different baud rate, or different encoding. The transmitter and receiver module usually use ASK modulation, Maybe even the modulation is not match. – Kong Chun Ho Jul 15 '16 at 9:28
  • Yeah the remotes come with little to no documentation so It's really hard to troubleshoot, I might even send them back and get the energenie ones – user49485 Jul 15 '16 at 9:29
  • What has the Arduino got to do with the question? I don't understand what is meant to be transmitting and what is meant to be receiving. – joan Jul 15 '16 at 10:43
  • Well the Arduino transmits a code using 433mhz and the Pi receives the code using 433mhz. The idea is to capture 433mhz codes from my RF remote so I can then get rid of the remote all together and just use my computer to control things – user49485 Jul 15 '16 at 10:46
  • That is still not clear. Are you trying to receive a remote control signal transmitted from a 433MHz fob with a 433MHz receiver connected to a Pi GPIO? What is the point of the Arduino in this scenario? – joan Jul 15 '16 at 11:02

To debug the radio signal being received at the Pi you could try my piscope utility. It will work locally on a Pi2/Pi3 but if possible it's best to run the display on a more powerful Linux PC. It will display the signals arriving at a Pi GPIO.

A quicker test would be to compile and run one of my fob programs.

I suggest you try _433D as that is the most recent. That will attempt to decode a fob which uses Manchester Encoded signals which I believe to be the commonest protocol in use.

  • Ah yes I came across this while looking for solutions earlier, I couldn't get it to work then realised that I hadn't installed pigpiod :p This is the set I bought with the remote amazon.co.uk/gp/product/B014614ODW Will that work with your utility? – user49485 Jul 15 '16 at 13:44
  • @user49485 I don't know. All I have to test with is one of those 4 button keyfobs which generate one of 16 codes depending on which combination of buttons are pressed. You'll have to try and see. – joan Jul 15 '16 at 13:49

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