M4 r5 iot
Q.1 Write a
program to interface LCD with Arduino board and display “ o level nielit"
on it.
Q.2
Arduino
program to Design a night lamp using a
photodiode and a LED and find out the
time delay associated with turning the lamp on and off.
Q.3
Arduino
program to interface gas sensor to detect the gas
cont int
gaspin=A0;
void
setup(){
Serial.begin(9600);}
void
loop(){
int
gassvalue=analogRead(gaspin);
serial.println(gassvalue);
delay(500);}
viva
iiot used
for
iot
components
microcontroller
used in arduino uno
what is the
work of setup()
O
level Iot m4 r 5 practical
Q1 Write an Arduino program to read temperature from a DHT11 sensor and
display it on the Serial Monitor every 2 seconds.
#include<DHT.h>
DHT dht(2,DHT11);
void setup()
Serial.begin(9600);
dht.begin();}
void loop(){
float t =dt.readTemperature();
if (!isnan(t))
serial.println("temp:",+string(t)+"c");
delay(2000);
}
Q 2 Arduino program to create automatic street
light control
by using LDR sensor
int
ldrpin=A0;
int
lightpin=8;
void
setup(){
pinMode(lightpin,OUTPUT);
pinMode(ldrpin,INTPUT);
}
int
ladrvalue=analogRead(ldrpin);
if(ladrvalue<500);
digitalWrite(lightpin,HIGH);
else
digitalWrite(lightpin,LOW);
}
Q
3 Write a program to interface a temperature
sensor (LM35)
and water Nozzle with the Arduino.
int tempin=A0
int nozzlepin=8;
void setup(){
pinMode(nozzelpin,OUTPUT);
}
int
raw=analogRead(tempin);
float tempc=
raw*0.488
if (tempc> 30)
digitalWrite(nozzelpin,HIGH);
else
digitalWrite(nozzelpin,LOW);
delay(1000);}
viva
name any
three sensors
name comman
communicatin protocol in iot
what is
real time operating system(RTOS)
what is
cloud computing in iot
M4 r5 iot practical
write
arduino program how to use a Piezo element to detect vibration.
Write a
program to interface AC with arduino board using Wi-Fi signals to on of the
delay of 1 second
Write a
program to interface security password with arduino board to so green light for
correct password and red light for incorrect password
Viva m4
How many
analog pin Arduino uno
Name any
four Arduino project component
Name the
sensor that use in street light project
What is
motivation
Self-motivation
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