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nodemcu / nodemcu-firmware

Lua based interactive firmware for ESP8266, ESP8285 and ESP32
https://nodemcu.readthedocs.io
MIT License
7.63k stars 3.12k forks source link

NodeMCU/Linux development started [announcement] #2278

Closed Spiritdude closed 6 years ago

Spiritdude commented 6 years ago

As I wrote in https://github.com/nodemcu/nodemcu-firmware/issues/2252 I have been pondering on a general platform called "NodeMCU", where NodeMCU/ESP8266 and NodeMCU/ESP32 are two implementations - hence my interest to harmonize both API closely so the same Lua code can run on both.

Now, the past days I quickly patched together a skeleton for NodeMCU/Linux which utilizes the Linux environment to run NodeMCU Lua code, as a test case my NodeMCU Shell I currently work on; some early tests with just few partially complete modules you can check at https://spiritdude.wordpress.com/2018/02/26/nodemcu-linux/ (I will update that post frequently)

The project itself is hosted at (for now): NodeMCU/Linux https://github.com/Spiritdude/nodemcu-linux

NodeMCU/Linux aims to support

The idea is to implement majority of the base modules (to be defined clearly) in Lua itself, with few hooks with FFI (either luajit or luaffifb module). The main challenge will be modules like u8g2 which needs low-level I2C or SPI interface hardware-near implemented.

If you are interested to contribute ideas or code, post an issue at https://github.com/Spiritdude/nodemcu-linux/issues (not here). If you have thoughts regarding the common platform (API) of "NodeMCU" as such, comment on this issue here. I currently document the "base" modules of NodeMCU/Linux at https://github.com/Spiritdude/nodemcu-linux/wiki - and the harmonization of NodeMCU/ESP8266 and NodeMCU/ESP32 https://github.com/nodemcu/nodemcu-firmware/wiki/ESP8266---ESP32-Compatibility

I'm only since ~2 months coding Lua, so I welcome any Lua wizard to give advise on good practice, e.g. see https://github.com/Spiritdude/nodemcu-linux/issues/1

Cc: @devsaurus @TerryE @marcelstoer

Spiritdude commented 6 years ago

First success running NodeMCU Shell on NodeMCU/Linux (most crucial modules for it are working):

left: NodeMCU Shell (telnet session) right: NodeMCU/Linux (starts a telnet server)

screenshot from 2018-03-05 17-09-59

Most implemented modules haven't tested thoroughly yet, and will mature over the next weeks.

I currently use https://github.com/ignacio/LuaNode/ luanode where I adapted the net.* and wrote some small wrappers to adapt the NodeMCU API, which made net.lua quite small; also made tmr.create():* easier to implement as it has setInterval() (like in NodeJS).

ffi (luaffifb) works on Intel, but fails on ARM-based CPUs as my first tests have shown.

Current detailed state of the project https://spiritdude.wordpress.com/2018/02/26/nodemcu-linux/

TerryE commented 6 years ago

I am not sure why this is remaining an open issue here.