code: #include LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x3F for a 16 chars and 2 line display #define TRIG_PIN 5 // ESP32 pin GPIO23 connected to Ultrasonic Sensor's TRIG pin #define ECHO_PIN 18 // ESP32 pin GPIO22 connected to Ultrasonic Sensor's ECHO pin float duration_us, distance_cm; void setup() { // begin serial port Serial.begin (9600); // configure the trigger pin to output mode pinMode(TRIG_PIN, OUTPUT); // configure the echo pin to input mode pinMode(ECHO_PIN, INPUT); lcd.begin(); lcd.clear(); lcd.backlight(); // Make sure backlight is on
// Print a message on both lines of the LCD. lcd.clear(); lcd.setCursor(0,0); lcd.print("Ultrasonic-Sensor");
lcd.setCursor(0,1); lcd.print("Based distance"); delay(1500); } void loop() { // generate 10-microsecond pulse to TRIG pin digitalWrite(TRIG_PIN, HIGH); delayMicroseconds(10); digitalWrite(TRIG_PIN, LOW); // measure duration of pulse from ECHO pin duration_us = pulseIn(ECHO_PIN, HIGH); // calculate the distance distance_cm = 0.017 * duration_us; // print the value to Serial Monitor Serial.print("distance: "); Serial.print(distance_cm); Serial.println(" cm"); lcd.clear(); lcd.setCursor(0,0); lcd.print("Distance:"); lcd.setCursor(0,1); lcd.print(distance_cm); lcd.setCursor(4,1); lcd.print("Cms");
Thank You
code:
#include
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x3F for a 16 chars and 2 line display
#define TRIG_PIN 5 // ESP32 pin GPIO23 connected to Ultrasonic Sensor's TRIG pin
#define ECHO_PIN 18 // ESP32 pin GPIO22 connected to Ultrasonic Sensor's ECHO pin
float duration_us, distance_cm;
void setup() {
// begin serial port
Serial.begin (9600);
// configure the trigger pin to output mode
pinMode(TRIG_PIN, OUTPUT);
// configure the echo pin to input mode
pinMode(ECHO_PIN, INPUT);
lcd.begin();
lcd.clear();
lcd.backlight(); // Make sure backlight is on
// Print a message on both lines of the LCD.
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Ultrasonic-Sensor");
lcd.setCursor(0,1);
lcd.print("Based distance");
delay(1500);
}
void loop() {
// generate 10-microsecond pulse to TRIG pin
digitalWrite(TRIG_PIN, HIGH);
delayMicroseconds(10);
digitalWrite(TRIG_PIN, LOW);
// measure duration of pulse from ECHO pin
duration_us = pulseIn(ECHO_PIN, HIGH);
// calculate the distance
distance_cm = 0.017 * duration_us;
// print the value to Serial Monitor
Serial.print("distance: ");
Serial.print(distance_cm);
Serial.println(" cm");
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Distance:");
lcd.setCursor(0,1);
lcd.print(distance_cm);
lcd.setCursor(4,1);
lcd.print("Cms");
delay(500);
}
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