Make: More Electronics

Chapter 2. Experiment 2: Getting Some Numbers

Here’s my plan. Looking ahead to the next experiments, I’m going to be showing you some components that were not included in Make: Electronics. The first three will be:

• Phototransistor
• Comparator
• Op-amp

These devices will be doing some things to interest and entertain you in Experiments 3 through 14. You’ll also be dealing with topics such as circuit design, especially using analog components.

After that, we’ll be using digital chips such as:

• Logic gates
• Decoders, encoders, and multiplexers
• Counters and shift registers

Then I’ll be discussing randomicity, and sensors—

But first, here and now, I have to make sure that we’re all on the same page regarding a few basic concepts. Even if you feel that ...