Page 166 - Amphibionics : Build Your Own Biologically Inspired Robot

Amphibionics 05 3/24/03 8:44 AM Page 145
Chapter 5 / Serpentronic: Build Your Own Robotic Snake
used to control the six servos, monitor the infrared sensor board,
turn on two light-emitting diodes (LEDs), and output sound to a
piezo speaker. Each of the controller board’s functions will be cov-
ered in detail when programming the robot.
Part Quantity Description TABLE 5.2
Parts List for
Semiconductors
Serpentronic’s Main
U1 1 78L05 5V regulator Controller Board
U2 1 PIC 16F84 flash microcontroller mounted
in socket
D1 1 Red light-emitting diode
D2 1 Green light-emitting diode

Resistors
R1 1 4.7 K 1/4-watt resistor
R2, R3, R4 3 1 K 1/4-watt resistor

Capacitors
C1 1 0.1 µf capacitor
C2, C3 2 22 pf
Miscellaneous

JP1–JP8 8 3-post header connector—2.5-mm spacing
JP9, JP10 2 1-post header connector—2.5-mm spacing
5-volt power 3 2-post header connector—2.5-mm spacing

Y1 1 4-MHz crystal
Piezo buzzer 1 Standard piezoelectric element
BT1 and BT2 1 4-contact terminal block
I.C. socket 1 18-pin I.C. socket—soldered to PC board U2

Printed 1 See details in chapter.
circuit board

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