wsd1’s gists

wsd1 / mqtt_pub_jpeg.py

Created April 5, 2024 18:55

一个简单的示例，通过mqtt发送一张jpeg图片。

	import os
	import paho.mqtt.client as mqtt

	# MQTT 代理地址和端口
	broker_address = "192.168.xx.xx"
	broker_port = 1883

	# 文件路径
	file_path = "160x128_demo_.jpg"

wsd1 / serialport_test_on_rpi3b.js

Created March 22, 2024 08:36

	//npm i serialport
	const SerialPort = require('serialport').SerialPort;
	var port = new SerialPort({
	path: '/dev/ttyUSB0',
	baudRate: 9600, //波特率
	dataBits: 8, //数据位
	parity: 'none', //奇偶校验
	stopBits: 1, //停止位
	flowControl: false
	}, false); // this is the openImmediately flag [default is true]

wsd1 / noiseGen.js

Created March 7, 2024 13:35

这是AI辅助生成的代码：用nodejs向/dev/video0 推送动态帧。测试用途。


	const fs = require('fs');

	const WIDTH = 512;
	const HEIGHT = 32;

	// 打开虚拟的 V4L 设备文件
	const v4l2Device = fs.openSync('/dev/video0', 'w');

	// 创建虚拟视频帧数据

wsd1 / queue.h

Last active February 26, 2024 02:16

简单精炼的queue实现

	/*
	From https://github.com/JSchaenzle/c-message-queue
	20240224: Add 2 APIs
	20240226: shxt.Bugs. (p_queue->read_idx)++ & (capacity - 1) => (p_queue->read_idx)++ % capacity
	*/
	#ifndef QUEUE_H
	#define QUEUE_H
	#include <stdint.h>
	#include <stdbool.h>
	#include <string.h>

wsd1 / perspectiveTest.html

Created January 12, 2024 07:33

本demo展示了使用getPerspectiveTransform函数获取变换矩阵,并使用warpPerspective函数变换图片的能力。由chatGPT3.5协助完成。

	<!DOCTYPE html>
	<html>

	<head>
	<meta charset="utf-8">
	<title>Hello OpenCV.js</title>
	</head>

	<body>
	<h2>本demo展示了使用getPerspectiveTransform函数获取变换矩阵,并使用warpPerspective函数变换图片的能力.</h2>

wsd1 / test.html

Created December 15, 2020 12:18

matter.js测试，包括attractor插件的使用

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
	<title>Matter-JS</title>
	<script src="https://brm.io/matter-js/demo/js/lib/decomp.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/matter-js/0.14.2/matter.js"></script>
	<script src="http://raw.githack.com/liabru/matter-attractors/master/build/matter-attractors.min.js"></script>

wsd1 / console.js

Created April 15, 2019 02:09

浏览器 console对象的兼容性包装和缓存化处理

	// console.log/warn/error/info 均可用
	// console.log('ha', 'hi');

	// console.show(false); //停止显示log

	// console.save(true); //开始存储log

	// logs = console.cache(); //获取log数组，并清空log缓存

	window.console = (function (origConsole) {

wsd1 / loginIn.html

Created April 11, 2019 01:27

Deepstream登录退出presence API测试。结论是：可以很好的检测退出，包括正常退出，页面关闭和断网

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<title>DsTest</title>
	<meta name="viewport" content="width=device-width, initial-scale=1" />
	<!--link rel="stylesheet" type="text/css" media="screen" href="main.css" /-->
	<script src="https://cdn.bootcss.com/deepstream.io-client-js/2.2.1/deepstream.js"></script>
	<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>

wsd1 / gist:4bc8c121bee064fd767cbade7f2c1e45

Last active January 24, 2019 13:14

通过 window.innerWidth 和css填充canvas满屏的方法


	function adjust(canvas, rw, rh) {
	var width = window.innerWidth;
	//var ratio = rw / rh; //canvas.width / canvas.height;
	//var height = width / ratio;
	if(!rw){
	rw = canvas.width
	rh = canvas.height
	}
	var height = width * rh / rw ;

wsd1 / wasm-check.html

Created June 8, 2018 08:44

WebAssembly 鉴定页面

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