Page 207 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build

b5 = b4 30
‘Make 2-s timing loop
for b6 = 1 to 120
‘Turn servo
pulsout 3, b5
‘Adjust timing (55 Hz)
pause 18 ‘Create servo direction
next b6 ‘Loop
goto start ‘Read microcontroller 1
vl: ‘Veer left
b5 = b4 + 30 ‘Create servo direction
for b6 = 1 to 120 ‘Make 2-s timing loop
pulsout 3, b5 ‘Turn servo
pause 18 ‘Adjust timing (55 Hz)
next b6 ‘Loop
goto start
The finished robot is shown in Fig. 8.18.

Behavior

The robot needs to function in a low-light environment, where it
can clearly see a bright light source. The light level required of my
robot was so low I needed to fabricate tiny sunglasses out of colored
plastic to reduce the light intensity hitting the CdS photocells.
186 The prototype robot exhibits the following behavior. In ambient
light (no bright light source) the robot travels in a straight line (or
circle depending upon the last light source target). If the ambient

8.18 Front view of finished robot

Team LRN
Chapter eight