Review questions
Answer the following questions to test your knowledge of this chapter:
- How many wires does the I2C protocol use and what are they?
- What is the golden rule when making circuits so that you don’t accidentally burn out your board?
- What does the
strip.setPixelColor(4, (0, 0, 220));
line of code do? - What are some of the ways we can use light and vision in our wearable?
- What useful purpose does the switch on the Circuit Playground board have?
- What additional components do we need to add to our motor circuits to make sure the motors work?
- Reflection: Which outputs did you enjoy the most? What planning can you do to use these different visual, audio, and haptic communication methods with the wearer? Take some time to think about some of the communication methods you’ve seen in existing products or items. What did you find effective, annoying, or unusual? Could you swap one output for another? How would that affect its use?