Page 116 - Amphibionics : Build Your Own Biologically Inspired Robot

Amphibionics 04 3/24/03 8:24 AM Page 95
Chapter 4 / Frogbotic: Build Your Own Robotic Frog
FIGURE 4.54
Frogbotic’s main
controller board
schematic.

used as inputs and outputs to monitor the robot’s leg position limit
switches, turn on two light-emitting diodes (LEDs), and output
sound to a piezo speaker. Each of the controller board’s functions
will be covered in detail when programming the robot.

Part Quantity Description TABLE 4.3
Parts List for
Semiconductors
Frogbotic’s Main
Controller Board
U1 1 78L05 5V regulator
U2 1 PIC 16F84 flash microcontroller mounted
in socket

Q1 1 2N3904 NPN transistor
D1 1 Red light-emitting diode

(continued on next page)

95