Questions and Answers
What is the purpose of the pinMode
function used in the setup function?
In the provided code, what is the significance of the variable Speed
?
What is the expected outcome of the for
loop that decrements the angle from 90 to 40?
Which statements correctly characterize the defined pins ir_R
, ir_F
, and ir_L
?
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What role does the variable s1, s2, s3
play in the script?
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Study Notes
Circuit Diagram and Code Overview
- The code defines pins for controlling two DC motors using the L298 motor driver.
- Motor A controls its speed via the
enA
pin and operates with inputs defined byin1
andin2
. - Motor B uses the
enB
pin for speed control, with directional inputsin3
andin4
. - Infrared sensors are utilized to detect fire, with pins assigned to
ir_R
,ir_F
, andir_L
.
Pin Configuration
-
enA
is assigned to pin 10 for controlling Motor A's enable signal. - Pins 9 and 8 (
in1
andin2
) set the forward and reverse direction for Motor A. - Pins 7 and 6 (
in3
andin4
) control Motor B's direction. -
enB
on pin 5 manages the speed of Motor B. - The infrared sensors are connected to analog pins A0, A1, and A2.
- A servo motor is connected to pin A4, and a pump to pin A5.
Motor Speed Control
- The
Speed
variable is initialized to 160, representing the duty cycle for motor speed ranging from 0 to 255.
Setup Function
- The
setup()
function initializes serial communication at 9600 bps. - Infrared sensor pins are set as input to receive signals.
- Motor control pins (
enA
,in1
,in2
,in3
,in4
, andenB
) are configured as output. - The servo and pump pins are also designated as output.
Servo Initialization
- A loop iterates to move the servo from 90 degrees to 40 degrees in decrements of 5 degrees.
-
servoPulse()
function is used to send signals to the servo, controlling its movement.
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Description
Test your knowledge on Arduino motor control with this quiz focused on circuit diagrams and coding techniques. You'll explore how to use the L298 motor driver and various sensors implemented in your projects. Get ready to dive into the essentials of motor control programming!