pimatic-homeduino slow receiving

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Hello,

I’m using a receiver with a low-pass filter connected to the RPi, and I noticed that homeduino takes about 2 seconds to recognize a button press. I’ve run the vhduino binary manually and it indeed takes those 2 seconds to receive the first data after a button press (repeats after that first data are faster).

I’ve used RFSniffer from 433utils and it shows the data instantaneously.
Also, CPU is not high.

Is there anything I can do to improve this?

EDIT: Been digging a little more, and found out that the delay comes from rfcontrol. Not sure why yet, but it seems related to the way it identifies the data packages.

@sweetpi @Icesory
Any idea ?

I am running it on a arduino and on a ESP and have no problems.
On the ESP I did have some strange behavior, it didn’t receive kaku and an other protocol sometimes wasn’t received or maybe late.
Had something todo with the buffer, this was fixed with the latest rfcontrol
https://github.com/pimatic/RFControl/commit/ca566d8e5f20f24403b11c2542d2b66f623c0daf

What are you using as a low-pass filter?

The RF verification system of RFControl is a little beast at the moment and can be improved. This is on my long list.
But this delay is really strange. Is use RFControl on many arduinos and they react instantly.

@incmve im using an attiny with the firmware from pilight.

The delay seems to come from the way RFControl identifies the RF package header length. I’m not sure thought.

You don’t need to use the attiny prefilter when using homeduino. Bypass the attiny and see what happens.
Another thing to try (and best solution) is to use an arduino for homeduino.

@leader21 Thanks! It now works instantaneously indeed! But the CPU usage of the RPi gets too high without the filter.

Isn’t it possible to run homeduino one the attiny instead of the arduino?

I don’t think it will work on a attiny but you can try to change MAX_RECORDINGS in https://github.com/pimatic/RFControl/blob/master/arduino_functions.h#L10

I had issues with it aswel on the ESP, the ESP was not defined in the arduino_functions.h so it defaulted to MAX_RECORDINGS 255
after changing it to MAX_RECORDINGS 512 everything was working fine.