使用Nodejs试验您的rgbled矩阵！rpi-rgb-.zip

# node-rpi-rgb-led-matrix Pilot your rgb led matrix with Nodejs on Raspberry Pi ! Nodejs binding of rpi-rgb-led-matrix library https://github.com/hzeller/rpi-rgb-led-matrix **PROJECT NOT MAINTAINED ! :(** **If you want to see a better and up to date project go to https://github.com/easybotics/node-rpi-rgb-led-matrix** **This repository probably will not work with recent nodejs version.** **This repository is probably not binding recent version of rpi-rgb-led-matrix library.** ## Compatibility NOTE: node-rpi-rgb-led-matrix should work across Node.js versions 0.8, 0.10, 0.12, 4 and 5 as it uses [Native Abstractions](https://github.com/nodejs/nan). *HOWEVER* there is a problem with the Node.js version 0.10.29 packaged with Raspbian Jessie 2015-11-21 which breaks Native Abstractions. The easiest fix is to make a minor edit to your v8.js file; this and other solutions outlined on [this Raspberry Pi Forum post](https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=127939). ### Installation with npm ``` $ npm i node-rpi-rgb-led-matrix ``` ### Installation with git ``` $ git clone --recursive https://github.com/zeitungen/node-rpi-rgb-led-matrix.git $ cd node-rpi-rgb-led-matrix $ npm i ``` ## Get some Fun ```js var LedMatrix = require("node-rpi-rgb-led-matrix"); //init a 16 rows by 16 cols led matrix //default hardware mapping is 'regular', could be 'adafruit-hat-pwm' ect var matrix = new LedMatrix(16, 16 ); matrix.fill(255, 50, 100); matrix.setPixel(0, 0, 0, 50, 255); ``` ## LedMatrix API * **Constructor: LedMatrix(rows, cols, chainedDisplays, parallelDisplays, hardware-mapping)** default values are `rows=32`, `cols=32`, `chainedDisplays=1`, `parallelDisplay=1`, `hardware-mapping=regular` * **getWidth()** return current led matrix width * **getHeight()** return current led matrix height * **fill(red, green, blue)** fill the led matrix with color specified by `red`, `green` and `blue`. `red`, `green` and `blue` must be between `0` and `255` * **setPixel(x, y, red, green, blue)** set the color pixel at the position `x`,`y` with color specified by `red`, `green` and `blue`. `red`, `green` and `blue` must be between `0` and `255`. `x` must be between `0` and `getWidth()`. `y` must be between `0`and `getGeight()` * **clear()** reset the led matrix display (shut down all leds) ## Add specific defines for rpi-rgb-led-matrix You can add specific defines for the rpi-rgb-led-matrix compilation. You have to modify the `binding.gyp` file. In the `rpi-rgb-led-matrix` target add `defines`array like this: ```json ... { "target_name": "rpi-rgb-led-matrix", "type": "static_library", "sources": ["external/matrix/lib/bdf-font.cc", "external/matrix/lib/framebuffer.cc", "external/matrix/lib/gpio.cc", "external/matrix/lib/graphics.cc", "external/matrix/lib/led-matrix.cc", "external/matrix/lib/thread.cc"], "libraries": ["-lrt", "-lm", "-lpthread"], "defines": ["RGB_CLASSIC_PINOUT", "ONLY_SINGLE_CHAIN"], "include_dirs": [ "external/matrix/include" ], "direct_dependent_settings": { "include_dirs": [ "external/matrix/include" ] } } ... ``` You have this defines possibility: * `INVERSE_RGB_DISPLAY_COLORS` * `SHOW_REFRESH_RATE` * `RGB_SLOWDOWN_GPIO=1` or `RGB_SLOWDOWN_GPIO=2` * `ADAFRUIT_RGBMATRIX_HAT` * `ADAFRUIT_RGBMATRIX_HAT_PWM` * `RGB_CLASSIC_PINOUT` * `ONLY_SINGLE_CHAIN` Look at [rpi-rgb-led-matrix Makefile](https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/lib/Makefile) for more details of this defines. **Don't forget to recompile**: ``` $ cd /path/to/node-rpi-rgb-led-matrix $ node-gyp build ``` or run `npm i`.