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@Spy Some components, such as speakers or buzzers, have holes in flanges that you can use to secure the component to the wall of ...
@Spy For items with flat surfaces such as breadboards or battery packs, Velcro or similar materials are useful to secure them in ...
@Spy You can also use wooden dowels and cable ties as we did to mount the micro- phone in Chapter 6 (see Figures 4-18 and 4-19). ...
@Spy You can use wire clips to secure wires to the side of boxes so they are out of the way as you work, as shown in Figure 4-20 ...
@Spy 84 Part I: Project Prep ...
@Spy Part II Sounding Off! 09_009683 pt02.qxp 6/22/06 9:41 PM Page 85 ...
@Spy In this part... W e thought we’d start you working on projects that provide a bang, so this first set of projects is all ab ...
@Spy Chapter 5 Chapter 5: Making Light Dance to the Music ................................................................ In Th ...
@Spy Here’s the overview of what you’ll be up to in the Dance to the Music project. You will Put together an electronic circuit ...
@Spy Scoping Out the Schematic ........................................................................... Music and light don’t ...
The following sections explore the schematic elements in detail. Fancy Footwork: Exploring the Dance to the Music Circuit ...... ...
Biasinvolves applying voltage that is above ground to a portion of the circuit to amplify both the positive and negative sides o ...
The circuit won’t mean a thing if you don’t set up the lights for it to con- trol. That’s where the two groups of LEDs and resis ...
Eight 100 ohm resistors (R15–R18, R32–R35) Two 10 kohm potentiometers (R7, R24) Four 47 kohm resistors (R3, R4, R20, R21) Tw ...
Taking Things Step by Step........................................................................... To make the lights dance t ...
Here are the steps involved in building the circuit: Place the two LM385 ICs (IC1 and IC2) and 11 terminal blocks on the breadb ...
Insert each transistor lead into a separate breadboard row with the col- lector lead to the left side (as shown in Figure 5-4), ...
LED terminal block to +V Pin 8 of IC2 to +V Pin 8 of IC1 to +V Battery terminal block to +V Figure 5-7: Connect components to th ...
Insert wires to connect IC2 to the transistors and the base pins of the transistors to each other, as shown in Figure 5-9. Inse ...
Insert eight 1 kohm resistors (R15–R18, R32–R35) from the emitter pins of each transistor to the ground bus, as shown in Figure ...
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