Temperature sensor robot
This robot sense where the heat is more and goes near it when the temperature crosses the default temperature it stops and plays a siren/buzzes . I have given it 30 degrees Celsius as the default temperature .Where ever it senses heat /fire it goes there . This can be used by the fire fighters.
Tools needed -
- Arduino board
- bread board
- lm35
- wires
- buzzer
- A motor driver circuit
- 12v battery
You can make the robot in your own design
The temperature sensor looks likes this
We can use IC L293D for the motor driver
 |
| these are the connections for the L293D |
The program for the robot is -
int ml=5;
int mr=4;
int sl=A0;
int sr=A1;
int buzz=3;
int ldata;
int rdata;
int temp=27 ;
void setup() {
Serial.begin (9600);
pinMode(ml,OUTPUT);
pinMode(mr,OUTPUT);
pinMode(buzz,OUTPUT);
}
void loop()
{
int lsense=analogRead(sl)*5/10;
int rsense=analogRead(sr)*5/10;
Serial.println(rsense);
Serial.println(lsense);
delay(1000);
if (temp>=lsense && temp>=rsense){
digitalWrite(ml,HIGH);
digitalWrite(mr,HIGH);
digitalWrite(buzz,LOW);
}
else if (temp < lsense && temp >= rsense){
digitalWrite(ml,HIGH);
digitalWrite(mr,LOW);
digitalWrite(buzz,LOW);
}
else if (temp >= lsense && temp < rsense){
digitalWrite(ml,LOW);
digitalWrite(mr,HIGH);
digitalWrite(buzz,LOW);
}
else if (temp < lsense && temp < rsense){
digitalWrite(ml,LOW);
digitalWrite(mr,LOW);
digitalWrite(buzz,HIGH);
}
}
