esp32 experiments

ultrasonic sensor interfacing with esp32 and display values on lcd

[@TOMTOM-nh3nl]

Thank You

[@RoboticAIprojects]

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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