Andrew McClure

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+1 For this.

Sure thing. I made a few changes to both lobaro and coapthon and have now got observer working with lobar acting as a server. Send me your email address.

Thanks, Do you want to raise a merge request for your changes?

You simply need to find an AT Mega based MCU that supports the hardware foot print necessary for the OPCUA stack and port accordingly.

Not enough SRAM. You could start with an STM32 and it would be a worthy project. Run it on a linux flavoured RTOS.

You could start with something like this. But I think you may be underestimating the effort a bit. https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware

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Just a wee note to thanks those involved in this thread. I used the parsed example file from 1008 for my Fujitsu Heatpump - decoding the base64 and encoding as...

This may help in the interim: Line 146: if (!S.waiting && S.offset