In software development, Node.js is an open-source, cross-platform runtime environment for developing server-side Web applications. Although Node.js is not a JavaScript framework, many of its basic modules are written in JavaScript, and developers can write new modules in JavaScript. The runtime environment interprets JavaScript using Google's V8 JavaScript engine. Wikipedia
Copy root@edison:~# nano mr.js
Copy var mraa = require ( 'mraa' );
var pinDigital = new mraa .Gpio ( 13 );
console .log ( 'MRAA Version: ' + m .getVersion ());
pinDigital .dir ( mraa . DIR_OUT );
pinDigital .write ( 1 );
Copy root@edison:~# node mr.js Nodejs, Socket.io and Intel Edison
Copy root@edison:~# npm install -g express socket.io
-\ |/-\|/-\|/-\-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/--\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\s
��├��─��─ escape-html@1.0.3
��├��─��─ range-parser@1.0.3
...
��├��─��─ socket.io-adapter@0.4.0 (socket.io-parser@2.2.2)
��└��─��─ socket.io-client@1.4.5 (to-array@0.1.4, indexof@0.0.1, component-
root@edison:~# git clone https://github.com/m2aglabs/socket.io-demo.git
Cloning into 'socket.io-demo' ...
remote: Counting objects: 22, done.
remote: Total 22 (delta 0 ), reused 0 ( delta 0 ), pack-reused 22
Unpacking objects: 100% (22/22), done.
Checking connectivity... done.
root@edison:~# cd socket.io-demo/
root@edison:~/socket.io-demo# ls
LICENSE.md icon.png package.json
README.md index.html thermo_demo.xdk
app.js js thermo_demo.xdke
root@edison:~/socket.io-demo# node app.js
MRAA Version: v0.8.0 Using a Rotary Encoder on Intel Edison, XDK
Copy itot@edison:~# git clone https://github.com/m2aglabs/rotary_encoder_demo.git
Cloning into 'rotary_encoder_demo' ...
remote: Counting objects: 25, done.
remote: Total 25 (delta 0 ), reused 0 ( delta 0 ), pack-reused 25
Unpacking objects: 100% (25/25), done.
Checking connectivity... done.
root@edison:~/trash# cd rotary_encoder_demo/
root@edison:~/trash/rotary_encoder_demo# ls
LICENSE.md index.html rotary_demo.xdk
README.md js rotary_demo.xdke
icon.png package.json server.js
root@edison:~/rotary_encoder_demo# node server.js
MRAA Version: v0.8.0
Copy root@edison:~# ls /usr/lib/node_modules/
iotkit jsupm_grovevdiv jsupm_mpl3115a2
iotkit-agent jsupm_grovewater jsupm_mpr121
iotkit-comm jsupm_grovewfs jsupm_mpu9150
jsupm_a110x jsupm_guvas12d jsupm_mq303a
jsupm_ad8232 jsupm_h3lis331dl jsupm_my9221
jsupm_adafruitms1438 jsupm_hcsr04 jsupm_nrf24l01
jsupm_adafruitss jsupm_hm11 jsupm_nrf8001
jsupm_adc121c021 jsupm_hmc5883l jsupm_nunchuck
jsupm_adis16448 jsupm_hmtrp jsupm_otp538u
jsupm_adxl335 jsupm_hp20x jsupm_pca9685
jsupm_adxl345 jsupm_ht9170 jsupm_pn532
jsupm_am2315 jsupm_htu21d jsupm_ppd42ns
jsupm_apds9002 jsupm_hx711 jsupm_pulsensor
jsupm_at42qt1070 jsupm_i2clcd jsupm_rfr359f
jsupm_biss0001 jsupm_ina132 jsupm_rgbringcoder
jsupm_bmpx8x jsupm_isd1820 jsupm_rotaryencoder
jsupm_buzzer jsupm_itg3200 jsupm_rpr220
jsupm_cjq4435 jsupm_joystick12 jsupm_servo
jsupm_ds1307 jsupm_l298 jsupm_si114x
jsupm_ecs1030 jsupm_ldt0028 jsupm_sm130
jsupm_enc03r jsupm_lm35 jsupm_st7735
jsupm_flex jsupm_lol jsupm_stepmotor
jsupm_gas jsupm_loudness jsupm_sx6119
jsupm_gp2y0a jsupm_lpd8806 jsupm_ta12200
jsupm_grove jsupm_lsm303 jsupm_tcs3414cs
jsupm_grovecircularled jsupm_lsm9ds0 jsupm_th02
jsupm_grovecollision jsupm_m24lr64e jsupm_tm1637
jsupm_groveehr jsupm_max31723 jsupm_tsl2561
jsupm_groveeldriver jsupm_max31855 jsupm_ttp223
jsupm_groveelectromagnet jsupm_max44000 jsupm_ublox6
jsupm_groveemg jsupm_max5487 jsupm_uln200xa
jsupm_grovegprs jsupm_maxds3231m jsupm_waterlevel
jsupm_grovegsr jsupm_maxsonarez jsupm_wheelencoder
jsupm_grovelinefinder jsupm_mg811 jsupm_wt5001
jsupm_grovemd jsupm_mhz16 jsupm_yg1006
jsupm_grovemoisture jsupm_mic jsupm_zfm20
jsupm_groveo2 jsupm_mlx90614 mraa
jsupm_grovescam jsupm_mma7455 npm
jsupm_grovespeaker jsupm_mma7660
root@edison:~#
Copy xe1gyq@jessie:~$ sudo npm install -g edison-cli
npm WARN deprecated graceful-fs@3.0.8: graceful-fs v3.0.0 and before will fail on node releases > = v6.0. Please update to graceful-fs@^4.0.0 as soon as possible. Use 'npm ls graceful-fs' to find it in the tree.
> ws@0.4.32 install /usr/local/lib/node_modules/edison-cli/node_modules/ws
> ( node-gyp rebuild 2> builderror.log ) || ( exit 0 )
make: Entering directory '/usr/local/lib/node_modules/edison-cli/node_modules/ws/build'
CXX(target ) Release/obj.target/bufferutil/src/bufferutil.o
SOLINK_MODULE(target ) Release/obj.target/bufferutil.node
SOLINK_MODULE(target ) Release/obj.target/bufferutil.node: Finished
COPY Release/bufferutil.node
CXX(target ) Release/obj.target/validation/src/validation.o
SOLINK_MODULE(target ) Release/obj.target/validation.node
SOLINK_MODULE(target ) Release/obj.target/validation.node: Finished
COPY Release/validation.node
make: Leaving directory '/usr/local/lib/node_modules/edison-cli/node_modules/ws/build'
/usr/local/bin/edison-cli - > /usr/local/lib/node_modules/edison-cli/bin/edison-cli
edison-cli@2.0.0 /usr/local/lib/node_modules/edison-cli
├── commander@2.9.0 (graceful-readlink@1.0.1)
├── temporary@0.0.8 (package@1.0.1)
├── mdns-js@0.1.5 (debug@0.8.1)
├── fstream@1.0.8 (inherits@2.0.1, graceful-fs@4.1.3, mkdirp@0.5.1, rimraf@2.5.2 )
├── tar-edison@0.1.16 (inherits@1.0.2, block-stream@0.0.8, fstream@0.1.31 )
└── ws@0.4.32 (tinycolor@0.0.1, options@0.0.6, commander@2.1.0, nan@1.0.0 )
xe1gyq@jessie:~$ edison-cli list
Edison Devices Found: 2
1 - 192.168.1.70
2 - 192.168.1.70
xe1gyq@jessie:~$