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By frasenci
#4011 New revision for LUA nodeMcu Firmware as of 2014/12/04

https://github.com/nodemcu/nodemcu-firmware

Again, fixing heap magaging.
In the details change log , it talks about heap recover time made shorter .... ( now seconds , not minutes ...")
Seems to me that it is dynamically assigned.... by default

Greetings
Francisco