Make: More Electronics

Chapter 16. Experiment 16: Enhanced ESP

Before providing you with a revised schematic, I’m going to start by spelling out the requirements in words. I think a verbal description should always be the first step in developing a logic diagram.

The second step is to convert the logic diagram into a schematic that uses actual components.

Are You Ready?

Adding “ready” prompts to the Telepathy Tester seems easy enough. Perhaps I can express the task like this:

“If button A0 OR A1 is pressed, then an indicator tells Boris that Annabel is ready. Alternatively, if button B0 OR B1 is pressed, then another indicator shows Annabel that Boris is ready.”

Figure 16-1 translates these two sentences into a logic diagram. For the sake of clarity, I have shown this separately ...