why and where is data sheet of node mcu

hello amazing people it was for the first time i jumped to study data sheets....after i worked on a couple of projects... guess what?...i just cant find data sheet for my nodeMCu board...all i get is for esp8266....but i wanna know about pins of nodeMCu board.. also..please gimme a reason to study data sheets,....for i wanna deal with coding.. thanks already

please gimme a reason to study data sheets,

You just posted one.

thanks AWOL... haha--hahahaa and what else

i just cant find data sheet for my nodeMCu board...all i get is for esp8266....but i wanna know about pins of nodeMCu board

I'm not sure what you're looking for. AFAIK, as a "board-level" product, NodeMCU doesn't have a datasheet any more than an "Arduino Nano" has a datasheet. You can find schematics, and pinout diagrams, but that's about it. There's not much there beyond a power supply, a USB/Serial module, and an ESP module... Also keep in mind: 1) NodeMCU was originally aimed at providing an LUA programming environment 2) The "board" is massively cloned, so different boards with the same name may have different voltage regulators, different USB/Serial chips, and different component layouts. (Hopefully, all the pins go the same places!)

thanks westfw

this is useful https://github.com/esp8266/Arduino/blob/master/variants/nodemcu/pins_arduino.h