No Description

Marcel Stör bc1e34b73f Add missing BME680 6 years ago
.github f562ef8fc1 Grammar and spelling fixes (#1852) 7 years ago
app e9ed1a8c59 Disable MQTT connect error callback after successful connection (#2262) 6 years ago
bin 3d99ea6833 Removed old SDK-provided bin files. 8 years ago
docs 8d2c523aab Fix WS2812 effects documentation 6 years ago
ld 1a6e83d088 Fixes problems with time not preserved through dsleep (#2148) 6 years ago
local af39a0bc25 Upgrade to latest SPIFFS and add building of file systems (#1226) 8 years ago
lua_examples 555b5574a2 Add sjson streaming example 6 years ago
lua_modules c4440e47ba Link ds18b20 C/Lua module docs 6 years ago
sdk-overrides 4e4dfc1d88 Align 8 MB & 16 MB flash sizes with SDK 2.1.0. (#1968) 7 years ago
tools 58d4e0692d Increase iram1_0_seg for PR builds, supports #2008 6 years ago
.gitignore 6027d86ec7 Add .ccache 6 years ago
.travis.yml a3145da52b Minify ESP8266 toolchain archive for CI (#1743) 7 years ago
CONTRIBUTING.md f562ef8fc1 Grammar and spelling fixes (#1852) 7 years ago
LICENSE b249b8d5fe update doc 9 years ago
Makefile 569628789c Makefile: add an optional compiler wrapper (#2066) 6 years ago
README.md 119835bf30 Update WiFi code sample 6 years ago
mkdocs.yml bc1e34b73f Add missing BME680 6 years ago
rtd-requirements.txt 5c65f2790d Remove custom favicon from docs 6 years ago

README.md

NodeMCU 2.1.0

Build Status Documentation Status License

A Lua based firmware for ESP8266 WiFi SOC

NodeMCU is an eLua based firmware for the ESP8266 WiFi SOC from Espressif. The firmware is based on the Espressif NON-OS SDK 2.1.0 and uses a file system based on spiffs. The code repository consists of 98.1% C-code that glues the thin Lua veneer to the SDK.

The NodeMCU firmware is a companion project to the popular NodeMCU dev kits, ready-made open source development boards with ESP8266-12E chips.

Summary

  • Easy to program wireless node and/or access point
  • Based on Lua 5.1.4 (without debug, os modules)
  • Asynchronous event-driven programming model
  • 55+ built-in modules
  • Firmware available with or without floating point support (integer-only uses less memory)
  • Up-to-date documentation at https://nodemcu.readthedocs.io

Programming Model

The NodeMCU programming model is similar to that of Node.js, only in Lua. It is asynchronous and event-driven. Many functions, therefore, have parameters for callback functions. To give you an idea what a NodeMCU program looks like study the short snippets below. For more extensive examples have a look at the /lua_examples folder in the repository on GitHub.

-- a simple HTTP server
srv = net.createServer(net.TCP)
srv:listen(80, function(conn)
	conn:on("receive", function(sck, payload)
		print(payload)
		sck:send("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1> Hello, NodeMCU.</h1>")
	end)
	conn:on("sent", function(sck) sck:close() end)
end)
-- connect to WiFi access point
wifi.setmode(wifi.STATION)
wifi.sta.config{ssid="SSID", pwd="password"}

Documentation

The entire NodeMCU documentation is maintained right in this repository at /docs. The fact that the API documentation is maintained in the same repository as the code that provides the API ensures consistency between the two. With every commit the documentation is rebuilt by Read the Docs and thus transformed from terse Markdown into a nicely browsable HTML site at https://nodemcu.readthedocs.io.

Releases

Due to the ever-growing number of modules available within NodeMCU, pre-built binaries are no longer made available. Use the automated custom firmware build service to get the specific firmware configuration you need, or consult the documentation for other options to build your own firmware.

This project uses two main branches, master and dev. dev is actively worked on and it’s also where PRs should be created against. master thus can be considered «stable» even though there are no automated regression tests. The goal is to merge back to master roughly every 2 months. Depending on the current «heat» (issues, PRs) we accept changes to dev for 5-6 weeks and then hold back for 2-3 weeks before the next snap is completed.

A new tag is created every time dev is merged back to master. They are listed in the releases section here on GitHub. Tag names follow the <SDK-version>-master_yyyymmdd pattern.

Support

See https://nodemcu.readthedocs.io/en/master/en/support/.

License

MIT © zeroday/nodemcu.com