NodeJs Samples with LCD screen


#1

Hello

I am having hard time trying to find nodejs samples with the groovepi and pi 3.
I want to do a simple hello world, I found a groovepi sample with intel edison but obviously that didnt work.

Doing a little of research, I found johny five library but that its only for arduino, but they are supposed to have plugins for other boards, like raspberry, so installed rasp-io, johnny five and tried to run this sample

var raspi = require(‘raspi-io’);
var five = require(‘johnny-five’);
var board = new five.Board({
io: new raspi()
});

board.on(‘ready’, function() {

var lcd = new five.LCD({
controller: “JHD1313M1”
});

lcd.bgColor(r, g, b).cursor(0, 0).print(f);

});

I get this error:
pi@raspberrypi:~/share/Sample2 $ node index.js
modprobe: ERROR: …/libkmod/libkmod.c:557 kmod_search_moddep() could not open moddep file '/lib/modules/4.4.26-v7+/modules.dep.bin’
child_process.js:531
throw err;
^

Error: Command failed: modprobe i2c-dev
modprobe: ERROR: …/libkmod/libkmod.c:557 kmod_search_moddep() could not open moddep file ‘/lib/modules/4.4.26-v7+/modules.dep.bin’

at checkExecSyncError (child_process.js:488:13)
at execSync (child_process.js:528:13)
at new I2C (/home/pi/share/Sample2/node_modules/raspi-i2c/lib/index.js:120:33)
at new Raspi (/home/pi/share/Sample2/node_modules/raspi-io/lib/index.js:161:14)
at Object.<anonymous> (/home/pi/share/Sample2/index.js:5:7)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)

I want to do a simple hello world on the LCD display I got in they key


#2

Sorry for the late reply. This section on github should have the examples you need.


#3

Also maybe read the readme. It tells how to install the nodejs stuff.