国产嘉立创eda - 基于浏览器的免费电路板设计软件:在线绘制原理图、仿真、pcb制作，简单易用，功能强大，专为中国人设计。

interactive real-time circuit simulation and animated visualization inspired students and engineers to design 2.6 million circuits online and in mobile app.

simulation of circuits has never been easier, simulate and troubleshoot broken circuits online in a rich simulation environment, easy to learn.

multisim live is a free, online circuit simulator that includes spice software, which lets you create, learn and share circuits and electronics online.

oshwlab - an open source hardware lab based on easyeda pcb designer, is the open source hardware platform with all kinds of circuit design modules such as embedded system, electronic module, diy design, iot, electrical and electronic design, where you can share your design inspiration with designers from various electronic industries. also, you can find lots of hardware designs here.

download free ringtones, hd wallpapers, backgrounds, icons and games to personalize your cell phone or mobile device using the zedge app for android and iphone.

the best pcb design software and high-powered tools for pcb designers. industry-leading schematic capture, layout and prototyping tools. eda / cad

download files and build them with your 3d printer, laser cutter, or cnc.

tinkercad is an easy-to-use 3d cad design tool. quickly turn your idea into a cad model for a 3d printer with tinkercad.

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