Circuits Cloud Is Now Open Circuits: A Free Circuit Simulator Built for Learning
If you studied electronics any time in the last decade, you may have run into Circuits Cloud , the free online simulator launched in Bahrain in 2014 and featured in plenty of "best online circuit simulators" lists. It has a new name and a new home: Open Circuits , at opencircuits.net . This post explains what changed, what you can do with it today, and how to try it in about five minutes. From…
A free online circuit simulator, initially named Circuits Cloud and now known as Open Circuits, has undergone a name change and moved to opencircuits.net. This simulator, initially developed by Script for Information Technology Solutions in Bahrain, was designed for students and hobbyists to experiment with electronic circuits before constructing them.
Open Circuits now supports digital logic, analog circuits, and microcontrollers. The digital logic section includes AND, OR, NOT, NAND, NOR, XOR, and XNOR gates, flip-flops, multiplexers, decoders, adders, clock generators, and 7-segment displays and LED arrays. The analog section provides components like resistors, capacitors, inductors, potentiometers, DC sources, diodes, LEDs, Zener diodes, NPN and PNP transistors, and operational amplifiers.
Microcontroller support encompasses Arduino UNO, Nano, Mega 2560, and Pro Mini, along with PIC16F877A, PIC16F887, PIC16F876A, PIC16F628A, PIC16F84A, and PIC12F675 chips. Users can program these microcontrollers in C, assembly, or Intel HEX, with support for timers, PWM, ADC, USART, and interrupts. Additional plug-in parts include LCD and OLED displays, servos, buzzers, RGB LEDs, NeoPixel strips, and various sensors.
The simulator offers recorded lessons, allowing users to pause, rewind, and replay circuits being built. Teachers can create class groups, assign circuit challenges, and provide personalized feedback using voice narration. The simulator is available in 15 languages, catering to a global user base. To try it out, visit opencircuits.net and explore the Circuit Library for ready-made examples. No installation is required, and the simulator is free to use.
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