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@skywatch P is lower lower, so good for battery nodes. 168 has half the amount of ram and flash, wich makes it very hard to fit anything but the most basic MySensors sketch. You won't even be able to activate debug logging.

@tsd MySensors will automatically call receive() when the node receives a message. It should not be called manually.

@dzjr MY_DEBUG should work fine

@tsd I think you'll need to run make before make install.

configure prepares the settings for make
make compiles the code into an executable file called mysgw, including changes to the cpp file and the settings from the configure command
make install copies the mysgw executable to /etc/init.d/

@tsd sorry for being unclear. This is how to use GATEWAY_DEBUG:

GATEWAY_DEBUG("This message will be sent to the debug log")

But I am not sure it is available in sketches and I don't have access to a computer at the moment.

The configure command looks good. After running configure, did you continue with make, etc?

@tsd I don’t know. Ikve always connected the gateways to my controller where I get logs and graphs.

Maybe you can use GATEWAY_DEBUG(text)

@dzjr the debug log from the node would be useful to see which number is being sent.

If the value needs to be inverted in the sketch, just remove this part:

1023 - 

Great work @stkilda
I think the sketch will work without modification. The easiest way to find out is probably to try it.

Welcome to the MySensors community @daniel-rus

A gateway does not store any data. You need to use a controller. It looks like there is no controller in your system?

If you haven’t already, see https://www.mysensors.org/about/network for an overview of how MySensors works.

@tsd

 present(1,S_SOUND);

should be

present(2,S_SOUND);

and you don’t need MyMessage msgTemp(1,V_TEMP);

I am not sure about the error. Are you using the rpi gw as serial, mqtt or ethernet gw? (What was your configure command?)