Created
March 10, 2018 19:53
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var SPI2 = new SPI(); | |
SPI2.setup({mosi: NodeMCU.D7 , sck: NodeMCU.D8 }); | |
var disp = require("MAX7219").connect(SPI2, NodeMCU.D5, 4 /* 4 chained devices */); | |
disp.intensity(0); | |
var g = Graphics.createArrayBuffer(32, 8, 1); | |
require("Font6x8").add(Graphics); | |
g.setFont6x8(); | |
g.flip = function() { disp.raw(g.buffer); }; // To send to the display | |
g.drawString("Hello"); | |
g.flip(); // update what's on the display | |
function clearAll(){ | |
g.clear(); | |
g.flip(); | |
} | |
function write(string){ | |
g.clear(); | |
g.drawString(string , (g.getWidth()-g.stringWidth( string )) / 2 ); | |
g.flip(); | |
} | |
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