树莓派3B+装ubuntu server后开启wifi

WIFI设置步骤：
https://www.cnblogs.com/dingbj/p/rasperpi3B.html

树莓派安装非官方系统没有raspi-config命令的解决方法：
https://blog.youkuaiyun.com/no1xium/article/details/107477055

Ubuntu Server下给树莓派安装摄像头：
https://blog.youkuaiyun.com/sinat_25259461/article/details/108353324

使用Raspiberry自带的摄像头python接口picamera库+Opencv来控制调用Camera：
https://picamera.readthedocs.io/en/release-1.13/index.html

使用树莓派的摄像头，将树莓派自身提供的picamera的API数据转换为Python Oencv可用图像数据：
https://www.cnblogs.com/uestc-mm/p/7606855.html

树莓派4B使用ubuntu-18.04.4-server 64位系统配置：
https://blog.youkuaiyun.com/fuck_hang/article/details/105766070

树莓派3B+ opencv实时人脸检测（haar）ubuntu mate 18.04:
https://blog.youkuaiyun.com/yhkre/article/details/100188549/