circuits topic
nestronic
Nestronic Game Music Synthesizer Alarm Clock
eeprom
Arduino-Based Parallel EEPROM Programmer Circuit
porygon
Programmatic input to the JoyCon, with example script for Pokemon Let's Go
circuit-simulator
简易在线电路仿真系统
logisim-evolution
Digital logic design tool and simulator
OpenCircuits
A free, open source, online digital circuit/logic designer.
circuit-simulator
⚡ An interactive electronic circuit simulator
circuitikz
CircuiTikZ TeX/LaTeX package for drawing circuits
ahkab
a SPICE-like electronic circuit simulator written in Python
react-network-diagrams
Contains ESnet network mapping and circuit rendering code, as used in the ESnet portal.