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nodemcu/nodemcu-firmware

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license: MIT

Language: C .

Lua based interactive firmware for ESP8266, ESP8285 and ESP32

最后发布版本: 3.0.0-release_20240225 ( 2024-02-25 17:40:35)

官方网址 GitHub网址

NodeMCU 3.0.0

Lua-based firmware for ESP8266 WiFi SOC

Join the chat at https://gitter.im/nodemcu/nodemcu-firmware CI Documentation Status License

NodeMCU is an open source Lua based firmware for the ESP8266 WiFi SOC from Espressif and uses an on-module flash-based SPIFFS file system. NodeMCU is implemented in C and is layered on the Espressif NON-OS SDK.

The firmware was initially developed as is a companion project to the popular ESP8266-based NodeMCU development modules, but the project is now community-supported, and the firmware can now be run on any ESP module.

Summary

  • Easy to program wireless node and/or access point
  • Based on Lua 5.1.4 or Lua 5.3 but without debug, io, os and (most of the) math modules
  • Asynchronous event-driven programming model
  • More than 70 built-in C modules and close to 20 Lua modules
  • Firmware available with or without floating point support (integer-only uses less memory)
  • Up-to-date documentation at https://nodemcu.readthedocs.io

LFS support

In July 2018 support for a Lua Flash Store (LFS) was introduced. LFS allows Lua code and its associated constant data to be executed directly out of flash-memory; just as the firmware itself is executed. This now enables NodeMCU developers to create Lua applications with up to 256Kb Lua code and read-only constants executing out of flash. All of the RAM is available for read-write data!

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.

Pages:

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, release and dev. dev is actively worked on and it's also where PRs should be created against. release thus can be considered "stable" even though there are no automated regression tests. The goal is to merge back to release 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 the dev branch is merged back to release. They are listed in this repo's releases.

Tag names follow the <SDK-version>-release_yyyymmdd pattern.

Support

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

License

MIT © zeroday/nodemcu.com

最近版本更新:(数据更新于 2024-09-13 08:50:02)

2024-02-25 17:40:35 3.0.0-release_20240225

2021-12-31 03:20:45 3.0.0-release_20211229

2021-02-04 06:00:23 3.0.0-release_20210201

2020-11-07 23:48:05 3.0-release_20201107

2020-09-28 17:35:32 3.0-release_20200910

2020-06-10 17:52:18 3.0-master_20200610

2019-09-10 14:18:11 3.0-master_20190907

2019-04-09 21:27:21 2.2.1-master_20190405

2018-12-08 06:19:26 2.2.1-master_20181207

2018-09-16 04:00:37 2.2.1-master_20180915

主题(topics):

esp32, esp8266, esp8285, espressif, firmware, lua, nodemcu, spiffs

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