Explain the overall operation of the testing.py program addressing all modules; the program is below:

import time

from Led import $*$

led$=$Led$()$

def test$\_$Led$()$:

try:

#Red wipe

print $("$

Red wipe"$)$

led.colorWipe$($led$.$strip, Color$(255,0,0))$

time.sleep$(1)$

#Green wipe

print $("$

Green wipe"$)$

led.colorWipe$($led$.$strip, Color$(0,255,0))$

time.sleep$(1)$

#Blue wipe

print $("$

Blue wipe"$)$

led.colorWipe$($led$.$strip, Color$(0,0,255))$

time.sleep$(1)$

#White wipe

print $("$

White wipe"$)$

led.colorWipe$($led$.$strip, Color$(255,255,255))$

time.sleep$(1)$

led.colorWipe$($led$.$strip, Color$(0,0,0))$ #turn off the light

print $("$

End of program"$)$

except KeyboardInterrupt:

led.colorWipe$($led$.$strip, Color$(0,0,0))$ #turn off the light

print $("$

End of program"$)$

from Ultrasonic import $*$

ultrasonic$=$Ultrasonic$()$

def test$\_$Ultrasonic$()$:

try:

while True:

data$=$ultrasonic.getDistance$()$ #Get the value

print $("$Obstacle distance is $"+$str$($data$)+"$CM$")$

time.sleep$(1)$

except KeyboardInterrupt:

print $("$

End of program"$)$

from Servo import $*$

servo$=$Servo$()$

def test$\_$Servo$()$:

try:

for i in range$(50)$:

servo.setServoAngle$(15,90+$i$)$

servo.setServoAngle$(12,90+$i$)$

servo.setServoAngle$(9,90+$i$)$

servo.setServoAngle$(16,90+$i$)$

servo.setServoAngle$(19,90+$i$)$

servo.setServoAngle$(22,90+$i$)$

time.sleep$(0\mathrm{.}005)$

for i in range$(60)$:

servo.setServoAngle$(14,90+$i$)$

servo.setServoAngle$(11,90+$i$)$

servo.setServoAngle$(8,90+$i$)$

servo.setServoAngle$(17,90-$i$)$

servo.setServoAngle$(20,90-$i$)$

servo.setServoAngle$(23,90-$i$)$

time.sleep$(0\mathrm{.}005)$

for i in range$(120)$:

servo.setServoAngle$(13,$i$)$

servo.setServoAngle$(10,$i$)$

servo.setServoAngle$(31,$i$)$

servo.setServoAngle$(18,180-$i$)$

servo.setServoAngle$(21,180-$i$)$

servo.setServoAngle$(27,180-$i$)$

time.sleep$(0\mathrm{.}005)$

print $("$

End of program"$)$

except KeyboardInterrupt:

print $("$

End of program"$)$

from ADC import $*$

adc$=$ADC$()$

def test$\_$Adc$()$:

try:

while True:

Power$=$adc.batteryPower$()$

print $("$The battery voltage is $"+$str$($Power$)+\text{'}$

$\text{'})$

time.sleep$(1)$

except KeyboardInterrupt:

print $("$

End of program"$)$

from Buzzer import $*$

buzzer$=$Buzzer$()$

def test$\_$Buzzer$()$:

try:

buzzer.run$(\text{'}1\text{'})$

time.sleep$(1)$

print $("1$S$")$

time.sleep$(1)$

print $("2$S$")$

time.sleep$(1)$

print $("3$S$")$

buzzer.run$(\text{'}0\text{'})$

print $("$

End of program"$)$

except KeyboardInterrupt:

buzzer.run$(\text{'}0\text{'})$

print $("$

End of program"$)$

import threading

from Control import $*$

# Main program logic follows:

def aa$()$:

while True:

test$\_$Led$()$

#Power$=$adc.batteryPower$()$

#print $("$The battery voltage is $"+$str$($Power$)+\text{'}$

$\text{'})$

data$=$ultrasonic.getDistance$()$ #Get the value

print $("$Obstacle distance is $"+$str$($data$)+"$CM$")$

def bb$()$:

while True:

for i in range$(30,150,1)$:

servo.setServoAngle$(1,$i$)$

time.sleep$(0\mathrm{.}05)$

for i in range$(150,30,-1)$:

servo.setServoAngle$(1,$i$)$

time.sleep$(0\mathrm{.}05)$

for i in range$(90,150,1)$:

servo.setServoAngle$(0,$i$)$

time.sleep$(0\mathrm{.}05)$

for i in range$(150,90,-1)$:

servo.setServoAngle$(0,$i$)$

time.sleep$(0\mathrm{.}05)$

if $\_\_$name$\_\_==\text{'}\_\_$main$\_\_\text{'}$:

print $(\text{'}$Program is starting $...\text{'})$

import sys

if len$($sys$.$argv$)<2$:

print $("$Parameter error: Please assign the device"$)$

exit$()$

if sys$.$argv$[1]==$ 'Led':

test$\_$Led$()$

elif sys$.$argv$[1]==$ 'Ultrasonic':

test$\_$Ultrasonic$()$

elif sys$.$argv$[1]==$ 'Servo':

test$\_$Servo$()$

elif sys$.$argv$[1]==$ 'ADC':

test$\_$Adc$()$

elif sys$.$argv$[1]==$ 'Buzzer':

test$\_$Buzzer$()$