Robot Building for Beginners, Third Edition

CHAPTER 6 ■ ROBOT LINE-FOLLOWING Figure 6-18. Ziploc brand square 2.5 cup container Most disposable food storage containers are ...

CHAPTER 6 ■ ROBOT LINE-FOLLOWING To whatever extent you can, use the same type and the same size screws throughout your robot. T ...

CHAPTER 6 ■ ROBOT LINE-FOLLOWING Of course, you still have the option of modifying the kit as desired, by substituting your own ...

CHAPTER 7 Nine-Volt Batteries Sandwich, the line-following robot, uses a 9 V battery for power. In fact, most of my robots use 9 ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Testing Battery Voltage Now you’re going to learn how to test a 9 V battery’s voltage with a mul ...

CHAPTER 7 ■ NINE-VOLT BATTERIES To protect the meter, you must always select a number that’s bigger than the maximum you expect ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Interpreting Test Results If the multimeter display shows a negative number (see Figure 7-6), th ...

CHAPTER 7 ■ NINE-VOLT BATTERIES When you remove either probe from either battery snap terminal, the meter will display zero agai ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Realistically, many consumer devices stop performing adequately when their 9 V battery falls bel ...

CHAPTER 7 ■ NINE-VOLT BATTERIES When purchasing NiMH 9 V-size batteries, look for the rated voltage and the rated capacity (mAh) ...

CHAPTER 7 ■ NINE-VOLT BATTERIES The disadvantages of lithium-polymer batteries are that they are more expensive and that you mus ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Figure 7-12. Non-rechargeable lithium 9 V batteries Lithium 9 V batteries have a couple of downs ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Heavy-duty battery capacity is seriously eroded at higher discharge rates, so the respectable 40 ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Battery Brand Names Stiff competition has ensured that there’s no performance difference between ...

CHAPTER 7 ■ NINE-VOLT BATTERIES Alternatively, another robot was a little too slow and a little too weak in a robot Sumo contest ...

CHAPTER 7 ■ NINE-VOLT BATTERIES There are a number of ways to physically connect a 9 V battery to a device. Most consumer produc ...

CHAPTER 8 ■ Chapter 8: Clips and Test Leads The components on Sandwich’s circuit board are permanently soldered together. You’ll ...

CHAPTER 8 ■ CLIPS AND TEST LEADS Obtaining Hook Clips Clips are available in many sizes and colors (see Figure 8-3). Beyond the ...

CHAPTER 8 ■ CLIPS AND TEST LEADS Testing Jumpers You’re now going to learn how your particular multimeter displays an electrical ...

CHAPTER 8 ■ CLIPS AND TEST LEADS (alternate) If your multimeter doesn’t have a continuity feature, turn the dial to the lowest o ...