英特尔Edison MRAA模块不起作用

问题描述

我最近下载了Intel XDK IOT版本，并使用了LED引脚13 Blink示例.然后，我将程序上载到Edison，但出现了一些错误.其中之一是它找不到MRAA模块.随附的示例代码为:main.js:

I recently downloaded the Intel XDK IOT version and used the LED pin 13 Blink sample.I then uploaded the program onto the Edison, but it came up with a few errors; One of them being that it could not find the MRAA module. The sample code that came with it was:main.js:

var mraa = new require("mraa"); //require mraa
console.log('MRAA Version: ' + mraa.getVersion()); //write the mraa version to the Intel XDK console

var myOnboardLed = new mraa.Gpio(13); //LED hooked up to digital pin 13 (or built in pin on Galileo Gen1 & Gen2)
myOnboardLed.dir(mraa.DIR_OUT); //set the gpio direction to output
var ledState = true; //Boolean to hold the state of Led

periodicActivity(); //call the periodicActivity function

function periodicActivity()
{
  myOnboardLed.write(ledState?1:0); //if ledState is true then write a '1' (high) otherwise write a '0' (low)
  ledState = !ledState; //invert the ledState
  setTimeout(periodicActivity,1000); //call the indicated function after 1 second (1000 milliseconds)
}

package.JSON:

package.JSON:

{
  "name": "Onboard LED Blink App",
  "description": "",
  "version": "0.0.0",
  "main": "main.js",
  "engines": {
    "node": ">=0.10.0"
  },
  "dependencies": {
  }
}

推荐答案

echo"src mraa-upm http://iotdk.intel.com/repos/1.1/intelgalactic >/etc/opkg/mraa-upm.confopkg更新opkg安装libmraa0

echo "src mraa-upm http://iotdk.intel.com/repos/1.1/intelgalactic" > /etc/opkg/mraa-upm.confopkg updateopkg install libmraa0

以上答案有错别字它应该是"mraa"而不是"maa"和opkg不好

the above answer has typosit should be "mraa" not "maa"and opkg not okpg

这篇关于英特尔Edison MRAA模块不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！