SimonLiu simonliu009

## build-opencv-for-pyenv.py
import pathlib
import sys

import sh


def clone_if_not_exists(name, url, **kwargs):
    if not pathlib.Path(name).exists():
        print("Cloning", url, "...")
        sh.git.clone(url, name, depth=1, **kwargs)

## KiCad
原理图Schmatic:
Shift+A 放置元件 place components
M		移动元件
G		拖动连线
E		编辑属性
C		复制
R		旋转
X		X轴镜像
Y		Y轴镜像
Shift+L 标签

## ledc.c
/* LEDC (LED Controller) fade example
   This example code is in the Public Domain (or CC0 licensed, at your option.)
   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/ledc.h"

## youtube-dl.md

      
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                simonliu009
                / youtube-dl.md
            
            
              Created
              October 31, 2020 08:15
                — forked from ryanlid/youtube-dl.md
            
              
                youtube-dl 下载设置代理
              
          
    socks5代理
youtube-dl --proxy socks5://127.0.0.1:1080 https://www.youtube.com/watch?v=6_gLU_OStK0

http代理
youtube-dl --proxy http://127.0.0.1:8118 https://www.youtube.com/watch?v=6_gLU_OStK0


## aprintf
int aprintf(char *str, ...) {
	int i, j, count = 0;

	va_list argv;
	va_start(argv, str);
	for(i = 0, j = 0; str[i] != '\0'; i++) {
		if (str[i] == '%') {
			count++;

			Serial.write(reinterpret_cast<const uint8_t*>(str+j), i-j);

## ESP32_SSD1306_TCA_MULTIPLEXER.ino
/*
 * Multiplexed SSD1306 Demo
 * Copyright © 2018-01-02 tobozo
 *
 * https://github.com/tobozo
 * https://twitter.com/tobozotagada
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the “Software”), to deal in
 * the Software without restriction, including without limitation the rights to

## Tornado webserver MJPEG streamer
import tornado.ioloop
import tornado.web
import gen
import time
import os
import tornado

file_list = os.listdir("img")
counter = 0

## img.sh
#!/bin/bash
#Function:rename files
#Created by xiaoyu
mname=0 #声明变量
for file in `ls`    #遍历当前目录下的所有文件
do
fname=${file:0:1}  #截取文件名的前1个字符
bname=${file:0-8}  #截取文件名的后8个字符
let "mname = mname + 1"
filename=$fname$mname$bname  #拼接最终文件名

## emacs cua-mode
原始列模式
emacs以C-x r开头的命令来进行矩形操作。先用C-space或者C-@设一个mark，移动光标到另一点，用以下命令进行列操作：

C-x r k 剪切一个矩形块

C-x r y 粘贴一个矩形块

C-x r o 插入一个矩形块

C-x r c 清除一个矩形块(使其变成空白)

## emacs key binding 快捷键
C-g ： 取消当前操作
C-x u : undo
光标向下移动一行 C-n
光标向上移动一行 C-p

光标向上移动一页 C-x [
光标向下移动一页 C-x ]

C-v ： 向下翻页
M-v ： 向上翻页
	import pathlib
	import sys

	import sh


	def clone_if_not_exists(name, url, **kwargs):
	if not pathlib.Path(name).exists():
	print("Cloning", url, "...")
	sh.git.clone(url, name, depth=1, **kwargs)
	原理图Schmatic:
	Shift+A 放置元件 place components
	M 移动元件
	G 拖动连线
	E 编辑属性
	C 复制
	R 旋转
	X X轴镜像
	Y Y轴镜像
	Shift+L 标签
	/* LEDC (LED Controller) fade example
	This example code is in the Public Domain (or CC0 licensed, at your option.)
	Unless required by applicable law or agreed to in writing, this
	software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
	CONDITIONS OF ANY KIND, either express or implied.
	*/
	#include <stdio.h>
	#include "freertos/FreeRTOS.h"
	#include "freertos/task.h"
	#include "driver/ledc.h"
	int aprintf(char *str, ...) {
	int i, j, count = 0;

	va_list argv;
	va_start(argv, str);
	for(i = 0, j = 0; str[i] != '\0'; i++) {
	if (str[i] == '%') {
	count++;

	Serial.write(reinterpret_cast<const uint8_t*>(str+j), i-j);
	/*
	* Multiplexed SSD1306 Demo
	* Copyright © 2018-01-02 tobozo
	*
	* https://github.com/tobozo
	* https://twitter.com/tobozotagada
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy of
	* this software and associated documentation files (the “Software”), to deal in
	* the Software without restriction, including without limitation the rights to
	import tornado.ioloop
	import tornado.web
	import gen
	import time
	import os
	import tornado

	file_list = os.listdir("img")
	counter = 0
	#!/bin/bash
	#Function:rename files
	#Created by xiaoyu
	mname=0 #声明变量
	for file in `ls` #遍历当前目录下的所有文件
	do
	fname=${file:0:1} #截取文件名的前1个字符
	bname=${file:0-8} #截取文件名的后8个字符
	let "mname = mname + 1"
	filename=$fname$mname$bname #拼接最终文件名
	原始列模式
	emacs以C-x r开头的命令来进行矩形操作。先用C-space或者C-@设一个mark，移动光标到另一点，用以下命令进行列操作：

	C-x r k 剪切一个矩形块

	C-x r y 粘贴一个矩形块

	C-x r o 插入一个矩形块

	C-x r c 清除一个矩形块(使其变成空白)
	C-g ：取消当前操作
	C-x u : undo
	光标向下移动一行 C-n
	光标向上移动一行 C-p

	光标向上移动一页 C-x [
	光标向下移动一页 C-x ]

	C-v ：向下翻页
	M-v ：向上翻页