Cucumber Guy

I know the PIC scans the row(input) and column(output) of the keypad. But how do they know which key is pressed? Can you explain as detail as possible with this...

Schematics?

I have a few questions. 1. Which programming language should I use? I am thinking of using C++. I know assembly but am not very good at it, so I...

Input Square Wave is described as follow: V max : 20V V min : -15v Frequency : 10kHz Design a clamper circuit to shift its referecence point so that its...