Diode — Build, program, and simulate hardware
Hacker News
February 20, 2026
AI-Generated Deep Dive Summary
Diode is an innovative 3D hardware simulator that allows users to build, program, and simulate electronic components directly in the browser. This groundbreaking tool supports a wide range of hardware elements, including Arduinos, integrated circuits, capacitors, transistors, LEDs, and more. By bringing hardware simulation to the web, Diode eliminates the need for physical tools, making it an accessible solution for engineers, educators, and enthusiasts alike.
The platform’s versatility is one of its key strengths. Users can experiment with fundamental components like resistors and capacitors, explore transistor configurations, design LED circuits, and even simulate complex integrated circuits without any physical setup. Diode also includes advanced features such as 555 timer simulations and tactile switches, catering to both beginners and experienced hardware enthusiasts. This browser-based approach is particularly useful for remote work, online education, and rapid prototyping.
Diode’s significance lies in its ability to democratize access to hardware tools. It provides a user-friendly interface that bridges the gap between theoretical knowledge and practical application. For tech enthusiasts, it offers an opportunity to innovate and test ideas without the constraints of physical resources. For educators, Diode serves as a valuable tool for teaching electronics concepts in a virtual environment, making learning more interactive and accessible.
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Originally published on Hacker News on 2/20/2026