# ------------------系统基于Raspi-linux armv7l-----------------
# Raspi
apt install ffmpeg
down https://nodejs.org/dist/v12.22.5/node-v12.22.5-linux-armv7l.tar.gz
ln -s /node/bin/node /us/local/node
ln -s /node/bin/npm /us/local/npm

# 启动主程序.sh
#!/usr/bin/sh
node main.js

<!-- 其它视频服务 -->
# MJPG-Streamer 视频服务
sudo apt install cmake libjpeg8-dev
git clone https://e.coding.net/fivecc/mjpg-streamer/mjpg-streamer.git
make && make install

# 启动MJPG-Streamer.sh
#!/bin/sh
/usr/local/bin/mjpg_streamer -i "/usr/local/lib/mjpg-streamer/input_uvc.so -n -f 30 -r 1280x720" -o "/usr/local/lib/mjpg-streamer/output_http.so -p 8080 -w /usr/local/share/mjpg-streamer/www"

# 树莓派桌面版，浏览器自动开启全屏在下面桌面路径增加
#/etc/xdg/lxsession/LXDE-pi/autostart
# kiosk模式
@chromium-browser --kiosk www.raspberrypi.org
# 全屏模式
@chromium-browser --start-fullscreen www.raspberrypi.org
# 最大化
@chromium-browser --start-maximized www.raspberrypi.org

# 注意 
rpio-pwm 的库中位34
<!-- 换算比例=>34电调中位，比例范围17~34~51 -->
const ratio = Math.floor(256 / 34 * 10) / 10
<!-- 换算比例：摇杆范围0-256 -->
return Math.round(v / ratio + 17)