We wondered recently about those crude ASCII schematics you see in some documentation — are there any dedicated schematic-focused tools to draw them, or are they just hand-crafted using vario… ...

Points of Interest : Circuit Canvas simplifies the creation of illustrated wiring diagrams. It is designed to be easy to use and fast, allowing users to create diagrams in less than a minute.

Prototype was constructed & tested using “Arduino UNO-R3” board; Sketch created,compiled & uploaded (to Arduino board) using Arduino IDE0022; Piezo-Speaker in the circuit is a “passive piezo-speaker”.