Instagram Facebook YouTube Code :- /* code started code created by Technical idEas #define buzzer=11 #define led=12 #define trigPin = 10; #define ehoPin = 9; 16x2 lcd connection rs = 2, en = 3, d4 = 4, d5 = 5, d6 = 6, d7 = 7; channel link :- https://youtube.com/channel/UCCJyR_wnt3SxhErsSUP9Wrw */ #include <LiquidCrystal.h> LiquidCrystal lcd(2, 3, 4, 5, 6, 7); const int trigPin = 10; const int echoPin = 9; long duration; int distance; void setup() { pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode(11, OUTPUT); pinMode(12, OUTPUT); Serial.begin(9600); lcd.begin(16,2); lcd.setCursor(0, 0); lcd.print(" Technical idEas "); delay(5000); } void loop() { digitalWrite(trigPin, LOW); delayMicroseconds(2); ...