一范风顺的笔记

 lspci | grep -E "Ethernet|Network" 是Intel网卡、aheros网卡，亦或是其他 

Intel网卡: 1. sudo apt-get install firmware-iwlwifi wireless-tools firmware-realtek gnome-nettool inetutils-tools 

aheros网卡: 1. sudo apt-get install wireless-tools firmwar

标签: Debian查看网卡具体型号 ,

1.打开终端 

2.sudo apt update 

3.sudo apt upgrade 

4,sudo apt install dkms 

5.sudo apt install git 

6. git clone https://github.com/morrownr/8821cu-20210916.git 

7. cd 88

标签: 8821cu驱动安装方法 ,

emqx 命令
emqx start          启动
emqx_ctl status     检查运行状态
emqx uninstall      服务卸载
emqx stop           停止
如果 EMQ 安装在本机，则使用浏览器打开地址 http://127.0.0.1:18083 ，输入默认用户

//--定义使用的 IO 口--//
sbit SRCLK=P3^6;//74HC595 11脚SHCP
sbit RCLK=P3^5;// 74HC595 12脚STCP
sbit SER=P3^4; // 74HC595 14脚DS

/*******************************************************************************
* 函 数 名 : Hc595SendByte(u8 dat)

设置第N位数据为1：
val |= (1<<n);

设置第N位数据为0：
val &= ~(1<<n);

查看第N位数据是否是1：
if(((val >>n) & 1)==1)
为真侧是1；
else
为假侧为0；


将数据第N位数据1改为0，或0改为1：
val ^= (1<<n);

 1.安装更新，如果提示确认请输入Y.

       #sudo apt-get update   

      #sudo apt-get upgrade

      #sudo apt-get dist-upgrade

   2.运行完成后需要做一个清理。

首先安装环境依赖
sudo apt-get install git wget flex bison gperf python3 python3-pip python3-setuptools cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0
然后从vscode官方下载安装vscode，安装完成后安装espressif idf插件
在配置时选择espressif官方源进行安装配置
配置完成后设置使用命令配置环境变量<

安装命令：
sudo apt install default-jdk

String str={"id":["3","4","5","7","8","9","10","11","12","15","16","17"],"cid":["1","1","2","1","2","2","2","2","2","2","2","2"],"sjtype":["HW","GX","DL","GX","GX","GX","GX","GX","GX","GX","GX","GX"],"devid":["2","2","2","1","6","6","6","6","6","6","6","6"],"control":["j1","j2","

将 netplan 的配置文件 50-cloud-init.yaml 进行如下配置:
network:
  wifis:
    wlan0:
      access-points:
          "mangguo\"\n        scan_ssid=1\n#      \"hack!\"":<