Wow – what an exceptionally useful tool! Through building a simulation in LTSpice, I was able to significantly increase my knowledge of the inputs and outputs of the ICs. Chris uses LTSpice to simulate circuits he goes over with us in the Contextual Electronics course. I haven’t discussed the LTSpice simulation yet. The goal of this post is to match the signals on a breadboard circuit to those created from an LTSpice simulation of the pH Circuit. It is time to try out the pH circuit on a breadboard.