Homey Community Forum

Homeyduino versus HTTP_GET

Hi all,
I successfully used the HTTP_GET cards in my first ESP8266 project and then discovered the Homeyduino app. For Homeyduino just put something like Homey.trigger(“TuinSensor”,Sensor); in the ESP code and it runs fine. The HTTP_GET method is using http.begin(address+URI); with http.GET(); to call the Homey API. It returns the http code, normaly 200. However approximately 15% of the transfers return 404 or -5. If that happens I repeat the call. Not nice, but this seems to work fine. No data loss.
So now my question:

  • If so many transfers fail when using the GET card app, I am afraid Homeyduino also has no 100% of success. But how does Homeyduino deal with failing transfers? Can Homeyduino notify me when a transfer fails?
    I have read all I could find about the Homeyduino app, but still need your help here. Thanks.

Hi Jan, I am using Homeyduino without any issues. Of course that might be different in your case. I however think the app works just fine. Not sure how it handles failed transfers. I assume it just skips failed transmissions.

Homeyduino is indeed running fine in several other ESP projects. I don’t think it skips failed transmissions as that would be quite unreliable. I still hope someone can explain us the algorithm.

The code is available.

But from looking at it, I don’t get the impression that there’s any mitigation for failed transmissions.

For sending data back to Homey, it makes an HTTP connection to Homey (so I assume that the Homeyduino app on Homey creates an HTTP server to receive these messages).

If the connection fails, nothing is done about it.

If the Homeyduino app returns an error as response to the transmission, nothing is done about it either.

So any error mitigation has to be done in your own code.

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Thanks Robert for pointing me to the lines that matter. I’ll have a try in understanding what it means for my project.