Question

LM35 Temperature Sensor is connected on Pin AD of Arduino and LED is connected on Pin 3. Write a Program to illuminate the LED based on the Temperature sensor value. Program should also display the temperature in Celsius on Serial Monitor Temperature in Celsius Sensor Input value 0.48828125 OO UNO ARDUINO .. ....

Answer 1

//code:--
int sensor_value=0;//declaring the variables
int temparature= 0;
int led_brightness=0;
int led=3;
void setup()
{
pinMode(A0, INPUT);//configuring a0 as input
pinMode(led,OUTPUT);//configuring led(i.e pin 3) as output
Serial.begin(9600);//setting baudrate for serial communication

}

void loop()
{
sensor_value = analogRead(A0);//reading value from lm35
temparature = ( sensor_value * 0.48828125);//converting the measured value into temparature
led_brightness = map(sensor_value, 0, 1023, 0, 255);//maping the measured sensor value to 0 to 255 which is standard range for pwm in arduino
analogWrite(led,led_brightness);//adjusting the brightness of the led based on the measuredvalue from lm35
Serial.print("the temparature in celsius is ");//printing into serial monitor
Serial.println(temparature);
delay(10); // Delay a little bit to improve simulation performance
}

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Text 1 (Arduino Uno R3) - 1 // code:-- 2 int sensor_value=0;//declaring the variables 3 int temparature= 0; 4 int led_brightness=0; int led=3; void setup() pinMode (AO, INPUT);//configuring al as input pinMode(led, OUTPUT);//configuring led (i.e pin 3) as output Serial.begin(9600); // setting baudrate for serial communication con NNNNHEHEHEHEH void loop() sensor value = analogRead (A0);//reading value from 1m35 temparature = ( sensor value * 0.48828125);//converting the measu led_brightness = map(sensor_value, 0, 1023, 0, 255);//maping the me analogWrite(led, led_brightness);//adjusting the brightness of the Serial.print("the temparature in celsius is ");//printing into ser: Serial.println(temparature); delay(10); // Delay a little bit to improve Ü. Serial Monitor the temparature in celsius is 74 the temparature in celsius is 67 the temparature in celsius is 82 the temparature in celsius is 82 the temparature in celsius is 87 the temparature in celsius is 91 the temparature in celsius is 91 the temparature in celsius is

NOTE:-here measured value is used to adjust the brightness of the led, the design is simulated in tinkercad which is shown in the above figures