Robot Building for Beginners, Third Edition

CHAPTER 11 ■ POWER ON! But, since there isn’t any return path to the battery except for the one that goes through the LED, the c ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Examining the Tube LED Circuit Schematic You can skip the tube-glowing circuit if you want ...

CHAPTER 11 ■ POWER ON! For the power indicator circuit: (9.15 V - 1.8 V) / (30 mA / 1000) = 245 W The calculation reveals a 245 ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Building the Tube LED Circuit The resistor and LEDs chain together in a column. Considerin ...

CHAPTER 11 ■ POWER ON! Circuit Summary Important things described in this chapter: A schematic is a symbolic illustration of th ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Assuming you are going to mount the power switch inside of a plastic sandwich container in ...

CHAPTER 12 Solderless Prototyping Sandwich, the line-following robot, has a fairly simple circuit. Even so, at least 30 or 40 el ...

CHAPTER 23 The Motherboard Throughout the book, you’ve slowly been building and testing a line-following circuit on a solderless ...

CHAPTER 12 ■ SOLDERLESS PROTOTYPING I always try out a new part or module design using a solderless breadboard. Although I often ...

CHAPTER 23 ■ THE MOTHERBOARD The final line-following circuit consists of identifiable modules of circuits from prior chapters. ...

CHAPTER 12 ■ SOLDERLESS PROTOTYPING The holes are spaced every tenth of an inch. Underneath, each hole has individual metal pron ...

CHAPTER 23 ■ THE MOTHERBOARD The brains and LEDs modules are the brightness comparator circuit with transistors The motor modul ...

CHAPTER 12 ■ SOLDERLESS PROTOTYPING Adjacent groups are independent of each other. A wire in one 5-position group is not connect ...

CHAPTER 23 ■ THE MOTHERBOARD If you want to try to determine the best value for your white LEDs, set up the headlight portion of ...

CHAPTER 12 ■ SOLDERLESS PROTOTYPING Center Gap There’s a gap in the center of the board. A wire in one 5-position group is not c ...

CHAPTER 23 ■ THE MOTHERBOARD Wow! 96000 W is much greater than the book’s default 150 W. Remember, this proposed change is to ha ...

CHAPTER 12 ■ SOLDERLESS PROTOTYPING Place a DIP so that each pin connects to its own 5-position group. When properly placed, it ...

CHAPTER 23 ■ THE MOTHERBOARD Looking at the end results, there are a couple of other factors that make printed circuit boards be ...

CHAPTER 12 ■ SOLDERLESS PROTOTYPING 25-Position Distribution Bus At this point, you’ve probably got the board figured out. Every ...

CHAPTER 23 ■ THE MOTHERBOARD Placing Components with a Helping Hand Place the board on a Helping Hand tool (see Figure 23-4). ...