CAD

There are many excellent drawing software available, but most rely on dexterity using the Mouse. Apart from using the Mouse to quickly change the operating point,these two CADS rely almost entirely on the use of the keys, thus enabling intricate drawing pixel by pixel. The program PlansCircuits can be used to draw electronic or printed circuits and plans, while the program PrintedCKT is just for Printed Circuits. Both allow for a black or white background, and selecting the thickness of the drawing line.The program wkeyscad is Similar.