edugimeno:
Hi!Libelium (IoT provider) explains in their webpages about using the MKRFOX module to send either with or without ACK, technically it seems that sending without ACK is much shorter (just 6-10 seconds) and takes less battery compared to sending with ACK (almost 1 minute), but in the Arduino documentation I can't find anything about it. Libelium use their own customized library.
I don't really need to know whether my packet has reached the server or not, if it didn't, next one will do. But I do need to save battery.
Does anyone know how they do this?
Thanks
Could you post the link to the Libelium web page so that we may read the article in context?
What is it you are attempting to accomplish exactly?