Net could be temporarily unavailable, for this reason I prefer to keep data saved on SD...When net will be available, board will send data though slowly. I forgot to say : usually I will have no data but suddenly I could have 8*16bytes and every code repeated a lot of times...My goal is only to get the code once( I dont mind how many times it s read) and after it, sending...
Anyway I'm evaluating to develop the project on Raspberry pi for soem reasons: hardware most powerful, possibility to create the program in different languages, possiblity to use different common hardware...let's see