Sir,
I'm doing my project on ultrasonic sensor from that i got serial monitor output from the below code
Water Level Meter
Measuring water level with ultrasonic sensor HR S04.
Arduino IDE 1.5.8
*/
int trig = 12;
int echo = 11;
void setup()
{
Serial.begin(9600);
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
}
void loop()
{
long t = 0, h = 0, hp = 0;
// Transmitting pulse
digitalWrite(trig, LOW);
delayMicroseconds(2);
digitalWrite(trig, HIGH);
delayMicroseconds(10);
digitalWrite(trig, LOW);
// Waiting for pulse
t = pulseIn(echo, HIGH);
// Calculating distance
h = t / 58;
h = h - 6; // offset correction
h = 100 - h; // water height, 0 - 100 cm
hp = 2 * h; // distance in %, 0-100 %
// Sending to computer
Serial.print(hp);
// Serial.print(" cm\n");
Serial.print("\n");
delay(1000);
}
but i wanna get convert this output to the voltage range of 0-5V. please do help me.