Changes

There are quite a few examples of how to use the ESP on the [https://github.com/nodemcu/nodemcu-firmware#start-play nodemcu] page, to be able to control LEDs or relays over wifi, you'll need to [https://github.com/nodemcu/nodemcu-firmware#connect-to-your-ap connect it to wifi], set up a [https://github.com/nodemcu/nodemcu-firmware#with-below-code-you-can-telnet-to-your-esp8266-now telnet server] (hint: load it as a init.lua script), and then [https://github.com/nodemcu/nodemcu-firmware#manipulate-hardware-like-a-arduino manipulate the GPIOs].