How much you get depends on the version you get. The memory is external and some come with 512kB, some come with 4096kB. cf https://gist.github.com/Coaxial/268

How much you get depends on the version you get. The memory is external and some come with 512kB, some come with 4096kB. cf https://gist.github.com/Coaxial/268c4198d09c2a712387 https://gist.github.com/Coaxial/268c4198d09c2a712387 for flash and RAM for mos (all?) currently available ESP8266 versions