ARM Linux安装node.js和node-red
<p><strong>SA515安装node.js和node-red</strong></p><p><strong>1.先安装node.js</strong></p>
<pre><code class="language-shell">直接官网下载ARMv7版可执行文件:https://nodejs.org/en/download
当前使用的最新版本:https://nodejs.org/dist/v18.16.0/node-v18.16.0-linux-armv7l.tar.xz
</code></pre>
<p><strong>2.导入开发板,这里以/usrdata为例</strong></p>
<pre><code class="language-shell">
adb push node-v18.16.0-linux-armv7l.tar.xz /usrdata
tar -vxfnode-v18.16.0-linux-armv7l.tar.xz
mv -f node-v18.16.0-linux-armv7l node-v18.16
cd node-v18.16/bin
./node -v
./node: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory
#执行失败,提示找不到libatomic.so.1,从yocto环境导入libatomic.so.1.2.0到/usrdata,创建软链接:
ln -s libatomic.so.1.2.0 libatomic.so.1
#修改库路径:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usrdata
./node -v
v18.16.0
</code></pre>
<p><strong>3.安装node-red</strong></p>
<pre><code class="language-shell">#开发板在线安装node-red会比较占资源,极有可能因为RAM问题被系统kill掉.
#建议ubuntu安装好之后导入开发板.
npm install -g node-red
#安装之后压缩node_modules下面的node-red文件夹,生成node-red.tar.gz
adb push node-red.tar.gz /usrdata
cd /usrdata
tar -vxf node-red.tar.gz -C node-v18.16/lib/node_modules
</code></pre>
<p><strong>4.运行</strong></p>
<pre><code class="language-shell">修改环境变量HOME
mkdir -p /usrdata/nodejs
export HOME=/usrdata/nodejs #npm和node-red需要用到HOME环境变量
cd /usrdata/node-v18.16/bin
创建node-red的软链接
ln -s ../lib/node_modules/node-red/red.js red
./node red -u /usrdata/nodejs #如果不用-u指定路径,则默认使用HOME路径.
#显示如下即表示启动成功.
4 May 06:34:29 -
Welcome to Node-RED
===================
4 May 06:34:29 - Node-RED version: v3.0.2
4 May 06:34:29 - Node.jsversion: v18.16.0
4 May 06:34:29 - Linux 4.14.206-perf arm LE
4 May 06:34:34 - Loading palette nodes
4 May 06:34:41 - Settings file: /usrdata/nodejs/settings.js
4 May 06:34:41 - Context store: 'default'
4 May 06:34:41 - User directory : /usrdata/nodejs
4 May 06:34:41 - Projects disabled : editorTheme.projects.enabled=false
4 May 06:34:41 - Flows file : /usrdata/nodejs/flows.json
4 May 06:34:41 - Creating new flow file
4 May 06:34:41 -
---------------------------------------------------------------------
Your flow credentials file is encrypted using a system-generated key.
If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
your credentials.
You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.
---------------------------------------------------------------------
4 May 06:34:41 - Encrypted credentials not found
4 May 06:34:41 - Server now running at http://127.0.0.1:1880/
4 May 06:34:41 - Starting flows
4 May 06:34:41 - Started flows
</code></pre>
<p><strong>5.web端启动</strong></p>
<p>http://192.168.101.1:1880/</p>
<p><strong>6.安装节点</strong></p>
<pre><code class="language-shell">#以安装gRPC和serialport为例
#Node-red web端打开节点管理->安装.
#搜索gRPC找到node-red-contrib-grpc.
#搜索serialport找到node-red-node-serialport.
#点安装即可,一般可能报错,提示路径问题.
#配置npm环境.
mkdir -p /usrdata/nodejs/node_global
mkdir -p /usrdata/nodejs/node_cache
#设置默认安装路径
./node npm config set prefix "/usrdata/nodejs/node_global"
./node npm config set cache "/usrdata/nodejs/node_cache"
#配置过来镜像源
npm config set registry https://registry.npm.taobao.org/
</code></pre><br><br>
来源：https://www.cnblogs.com/edenpei/p/17371407.html
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