Another big thanks for making Logic Circuit

[MarioGianota]

I downloaded it about a year ago and I find I am using it more and more to test my circuits before I build my hardware. I am about to draw up a 4 stage, binary ripple counter with master-slave J-K flip-flops using the app. I'll then move to EasyEda (https://easyeda.com), draw the schematic and use that to do the breadboard wiring.

--Mario