Freenove 4WD Smart Car Board for Raspberry Pi User Manual

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Chapter 7 Smart video car
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Buzzer. For more details, please refer to Buzzer.
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from Buzzer import * #import Led
from Command import COMMAND as cmd #import Led
buzzer=Buzzer() #create an object
buzzer.run(‘1’) #Start
time.sleep(3) #wait 3s
buzzer.run(‘0’) #Stop
Servo. For more details, please refer to Servo.
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from servo import * #import Led
pwm = Servo() #create an object
#Servo rotates from 30 degrees to 150 degrees
for i in range(30, 150, 1) :
pwm.setServoPwm('0', i)
time.sleep(0.01)
#Servo rotates from 150 degrees to 0 degrees
for i in range(150, 30, -1) :
pwm.setServoPwm('0', i)
time.sleep(0.01)
Ultrasonic module. For more details, please refer to Ultrasonic module.
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from Ultrasonic import * #import Led
ultrasonic=Ultrasonic() #create an object
data=ultrasonic.get_distance() #Get the value
print ("Obstacle distance is "+str(data)+"CM")
These codes can be integrated into one code to achieve your requirement.

Freenove 4WD Smart Car Board for Raspberry Pi Specifications

General

Brand	Freenove
Model	4WD Smart Car Board for Raspberry Pi
Category	Microcontrollers
Language	English