Logic Gate Simulator

One piece of software that I’ve found invaluable is Logic Gate Simulator.

It can be found here. It was written by a guy named Steve Kollmansberger.

There are probably plenty of other gate simulator programs but this is the first one I found and I love it.

It lets you plonk your gates onto the drawing board and then tie the inputs and outputs together. I highly recommend the program and I suggest you give it a try.



My journey into logic

I haven’t looked at logic gates since I went to college 15 years ago. I recently decided that it’s time to revisit the theory and get a better understanding of electronics using logic circuits.

After viewing a few youtube videos and reading some old college textbooks, I’m in a much better position to start some physical experiments. I have looked in my parts collection and while there are plenty of TTL chips, none of them are the simple AND, OR and XOR type.

Onto the internet I went, looking for bargain chips to get playing with……. unfortunately, I just don’t have the spare cash right now to go throwing at random chips.

Enter this ………..



This is a cheap CPLD board based around the Altera Max II chip.

I know I could have spent a bit more and gone for a larger chip or even an FPGA but I’ve decided that this ¬†will suffice for now.

My aim is to design the logic circuits using the schematic view of the Quartus 2 software. I know everyone these days uses VHDL or Verilog but I’m not all that bright so trying to learn a new language is just going to send me over the top.

I’ve now got to wait another 20 or so days for it to arrive from China but I can’t wait to get started with my adventures into logic circuits.

Bring it on!!!