Maximum size of messages

[grundid]

I'm having issues with larger messages. Messages with more than 76 characters are not send.
After looking at the source code I've noticed that you have a StaticJsonBuffer with 100 bytes in the sendState method.

Since the examples already use StaticJsonBuffer with 500 bytes I guess it would be good to increase the buffer or maybe document the limitation.

[anaptfox]

@grundid, thanks for bringing this up. I can add a note about it in the README.md

Overall, the issue has to do with the underlying MQTT client (PubSubClient) we use.

For more info:
https://forums.losant.com/t/sending-commands-with-larger-payloads/135
knolleary/pubsubclient#110