flash_os wrote:How to get round the internal 5v voltage regulator on ESP-12E?
Because I already have 3.3v source.
ESP8266 Modules don't have any internal 5v voltage regulator, all of them are working on 3.3v...
What you mentioned "NodeMCU", those are all different boards with ESP8266 module integrated.
So, those boards like "NodeMCU, WeMOS, etc... (a million of similar boards)", they all have only 3.3v voltage regulator on them because they are sourced mainly from the USB port (5v).
But some boards has both voltage regulators integrated too (like mine prototypes) because I driving them from wall adapter 9v or 12v source DC.