• Theoretically you can update the ESP8266 firmware via the EspruinoWiFi, but it's not an easy process. I think I'd try and stick with the existing firmware if at all possible - I don't think many people would bother updating it if I added the option to do so... And actually I just tested and CIPDINFO=1 works fine, so it looks like there's no need.

    It's just as well, because AT+CIUPDATE would have been perfect, but it seems to fail :(

    @PaddeK I'm not sure multicast is supported in any firmwares? I could be wrong though

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