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eclipse / upm

UPM is a high level repository that provides software drivers for a wide variety of commonly used sensors and actuators. These software drivers interact with the underlying hardware platform through calls to MRAA APIs.
MIT License
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Mraa doesn't work properly. #527

Open shigosen opened 7 years ago

shigosen commented 7 years ago

Recently I installed mraa library in Edison kit for arduino.Then I try to identify version of this. But mraa doesn't work properly.Following is output.

var m =require('mraa'); Error: Cannot find module 'mraa' at Function.Module._resolveFilename (module.js:325:15) at Function.Module._load (module.js:276:25) at Module.require (module.js:353:17) at require (internal/module.js:12:17) at repl:1:8 at REPLServer.defaultEval (repl.js:262:27) at bound (domain.js:287:14) at REPLServer.runBound [as eval] (domain.js:300:12) at REPLServer. (repl.js:431:12) at emit0ne (events.js:82:20)

shigosen commented 7 years ago

Does anyone help me?

Propanu commented 7 years ago

Set your NODE_PATH variable to the location where you installed MRAA before running Node.js.

For example: export NODE_PATH=/usr/lib/node_modules.

shigosen commented 7 years ago

Thanks.

shigosen commented 7 years ago

I forgot where Mraa is saved.Could you tell me how do I search the directory or the file is saved Mraa.

Propanu commented 7 years ago

You can use

find / -name "mraa\.node" 2>/dev/null

This will also filter permission denied error messages.

shigosen commented 7 years ago

Thank you.

shigosen commented 7 years ago

I used command line mentioned above ,but Tera term didn't show any characters.

shigosen commented 7 years ago

Tera term didn't show any characters but root@username.

shigosen commented 7 years ago

I don't know what variables should set to the location I installed Mraa.And I couldn't understand command line mentioned above. I assume export NODE_PATH=/user/lib/node_modules means set NODE_PATH variable to /user/lib/node_modules directory.

Propanu commented 7 years ago

Yes, when you set that environment variable, Node.js will use it to search for additional modules at that location. The find command mentioned above should give an output similar to this, on an Intel Edison with the latest image:

root@pedison:~# find / -name "mraa\.node" 2>/dev/null
/usr/lib/node_modules/mraa/mraa.node
shigosen commented 7 years ago

Thanks.I'll try again.