Page 117 - Amphibionics : Build Your Own Biologically Inspired Robot

Amphibionics 04 3/24/03 8:24 AM Page 96
Amphibionics
TABLE 4.3
Parts List for
Green light-emitting diode
1
D2
Frogbotic’s Main Part Quantity Description
Controller Board Resistors
(continued)
R1 1 4.7 K 1/4-watt resistor
R2, R3, R4 3 1 K 1/4-watt resistor
R5 1 100 1/4-watt resistor
Capacitors
C1 1 0.1 µf capacitor
C2, C3 2 22 pf

Miscellaneous
JP1–JP5, JP8 6 3-post header connector—2.5 mm spacing

JP6, JP7 4 2-post header connector—2.5 mm spacing
Battery 2 2-post header connector—2.5 mm spacing
connectors
Y1 1 4-MHz crystal

Piezo buzzer 1 Standard piezoelectric element
Battery holder 1 4-cell AA battery holder—6V output

Battery strap 1 9V-type battery strap
IC socket 1 18-pin IC socket—soldered to PC board U2

Printed circuit 1 See details in chapter.
board

Creating Frogbotic’s Printed Circuit Board
To fabricate the PCB, photocopy the artwork in Figure 4.55 onto a
transparency. Make sure that the photocopy is the exact size of the
original. For convenience, you can download the file from the

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