Since March 1999, RED Free Circuit Designs offers a vast amount of original circuits for free, with a particular fondness for High Quality audio designs. A new circuit is usually added each month: in ...
KiCAD EDA is a free, open-source, and cross-platform electronic design automation suite. This software contains three different modules including Schematic Editor, PCB Layout, and 3D Viewer. Schematic ...
The 555 timer is one of the most versatile integrated circuits available. It can generate PWM signals, tones, and single-shot pulses. You can even put one in a bi-stable mode similar to a flip flop.