Robot Building for Beginners, Third Edition

CHAPTER 10 ■ LEDS Lux or footcandle (fc) measurements describe how much light falls in a given area at a given distance away. It ...

CHAPTER 22 ■ Chapter 22: Soldering and Connecting This chapter covers soldering, with emphasis on soldering smaller pieces, like ...

CHAPTER 10 ■ LEDS To determine which lead is the cathode, look for a flat or notched side on the bottom of the otherwise round l ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Putting Together the Motors The following steps describe how to attach wires and connector ...

CHAPTER 10 ■ LEDS A bond wire (also called a whisker) connects the die to the anode lead. The bond wire is very thin! With some ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Twist the wire around itself to provide a firm grip on the terminal (see the right side o ...

CHAPTER 10 ■ LEDS Because one wire is dedicated to each of the two LED colors, they can be enabled at the same time. This permit ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Soldering the Motors Touch the soldering iron tip to one side of the motor terminal and w ...

CHAPTER 10 ■ LEDS Setting Up a Multimeter for Diode Testing On the multimeter, the black lead should be connected to the COM te ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Figure 22-6. Wire and terminal soldered together If you aren’t happy with the shape or shi ...

CHAPTER 10 ■ LEDS Interpreting LED Test Results If the multimeter display doesn’t change values when the LED is connected, it’s ...

CHAPTER 22 ■ SOLDERING AND CONNECTING I find my soldering skills improve with each robot. Sometimes I’ll get overconfident or sl ...

CHAPTER 10 ■ LEDS If there isn’t a problem with the test setup, it could be that the LED is damaged. A diode voltage value below ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Protecting the Motor Terminals with Heat-Shrink Tubing You should cover the motor terminal ...

CHAPTER 10 ■ LEDS Forward Voltage Drop The voltage value displayed on the meter is called the forward voltage drop. That is, if ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Slide one of the black tubes over the soldered black wire on the negative motor terminal. ...

CHAPTER 10 ■ LEDS The green, yellow, and red LEDs tend to be inexpensive. In fact, all of the colored LEDs combined cost less th ...

CHAPTER 22 ■ SOLDERING AND CONNECTING Repeat the process for the other motor. Unplug the hair dryer or heat gun. Set it somepla ...

CHAPTER 11 Power On! Building and Testing a Power Indicator Circuit Nearly all robots need a power indicator light. It’s a very ...

CHAPTER 22 ■ SOLDERING AND CONNECTING A Molex KK connector consists of three parts (see Figure 22-13). First, there’s a male hea ...