Data Sheet

102 : circuit 5c
NEW CONCEPTS
AUTONOMOUS VEHICLES: The robot
that you will build uses a simple sensor
to avoid obstacles. This kind of system
is used in Mars rovers, autonomous cars
and the bots built for all kinds of robotics
competitions. Understanding this example
code will set you on the path to building
bigger and better autonomous vehicles!
Keep in mind that the ultrasonic distance
sensor needs a clear path to avoid
unwanted interruptions in your robot’s
movements. Keep the distance sensor clear
of any wires from your circuit.
ASSEMBLY
BATTERY HOLDER ATTACHMENT:
If you did not attach the battery pack in
Project 4, cut two pieces of Dual Lock,
about 1 inch x 1 inch (2.5cm x 2.5cm) each.
Remove the adhesive backing, and attach
one piece to the back of the battery holder.
Adhere the second piece to the bottom of
the baseplate, directly in the middle.
Press the battery holder to the baseplate
so that the two pieces of Dual Lock snap
together. Insert the batteries into the
holder if you have not done so already.
Remember that batteries are polarized and
can only go in one way.
Clip the binder clip back on, and you are
ready to roll!
Circuit 5C:
Autonomous
Robot
Free the robots! In this circuit, you’ll
unplug your robot and program it to
navigate the world on its own. When the
robot senses an object using the distance
sensor, it will back up and change course.
YOU
NEED
VM
VCC
GND
A01
A02
B02
B01
GND
PWMA
A12
A11
ST
BY
B11
B12
PWMB
GND
M
O
T
OR
DRIVER
H8106
T
VCC
Trig
Echo
GND
TJP16527BH2
1652
R
MOTOR DRIVER SWITCH  JUMPER WIRES  GEAR MOTORS
DISTANCE SENSOR DUAL LOCK TAPE BINDER CLIP  WHEELS SCISSORS
HEADS UP!
Make sure your switch is in the
OFF position. As soon as the code is
finished uploading, your robot will
begin driving. Make sure it cannot
drive off a table or other high surface
and injure itself.
(NOT INCLUDED)
SIK v4 Book Oct 13.indb 102 10/18/17 10:02 AM