EVM (Embedded Virtural Machine)

EVM是一款超轻量级嵌入式虚拟机,专为资源受限的单片机设计。支持多语言混合开发(如JavaScript、Python等),具有40KB最小编译体积和2KB最小内存占用,提供高效运行性能和灵活扩展能力,旨在降低物联网开发门槛。

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项目推荐- 项目地址:https://github.com/scriptiot/evm- 类别:C- 项目描述: EVM 全称 Embedded Virtural Machine,本质上是一款通用、精简的嵌入式虚拟机,由语法解析前端框架和字节码运行后端构成,可运行在资源受限制的单片机上。evm- 优势特点: - 最小编译体积40KB,最小内存占用2KB; - 支持多语言混合开发,目前支持Javascript、Python、Lua、QML、Json、XML等语言; - 先进的内存管理,无内存泄露和内存碎片问题; - 高效的运行性能,性能媲美QuickJs; - 灵活的虚拟机扩展技术,多语言可共享扩展功能; - EVM愿景:支持脚本语言开发嵌入式,高效的运行性能,打破物联网和互联网人才边界,赋能物联网企业和开发者全新的开发模式,降低物联网开发门槛,极速提升开发效率。- 基于qml的手表Demo展示watchRectangle { id: rect x: 0 y: 0 width: 800 height: 600 style:Style{ main_color: 'lightblue' grad_color: 'lightblue' } Rectangle{ x: 200 y: 100 width: 400 height: 400 style:Style{ main_color: 'lightblue' grad_color: 'lightblue' } Image{ source: 'images/wear/ico_watch_background_011.bin' } Gauge{ id: g1 x:45 y:45 width:300 height:300 min:0 max:360 scale: [360, 0,0] GaugeValue{ id:gvsec index:0 value:0 } function animation(){ var date = new Date(); var offset = 31; var hx = date.getHours(); var mx = date.getMinutes(); var sx = date.getSeconds(); if( hx > 12) hx = hx - 12; if( hx <= 6 ) hx = hx * 360 / 12 + 180; if( hx > 6 && hx <= 12) hx = hx * 360 / 12 - 180; if( sx >= 30 ) sx = sx * 6 - 180; else sx = sx * 6 + 180; if( mx >= 30 ) mx = mx * 6 - 180; else mx = mx * 6 + 180; hx = hx + date.getMinutes() * 30 / 60; print(hx, mx, sx); gvhour.value = hx; gvmin.value = mx; gvsec.value = sx; } timer_id:0 onCompleted: { g1.timer_id = setInterval(g1.animation, 200); } } Gauge{ x:95 y:95 width:200 height:200 min:0 max:360 needle: ['white'] scale: [360, 0,0] GaugeValue{ id:gvmin index:0 value:20 } } Gauge{ x:120 y:120 width:150 height:150 needle: ['yellow'] min:0 max:360 scale: [360, 0,0] GaugeValue{ id:gvhour index:0 value:0 } } }}

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