How to measure distance with an Arduino and Ultrasonic Sensor // HC-SR04 

For people who are lazy const int triggerPin = 9; const int echoPin = 10; float pulse_width, distance; void setup() { // put your setup code here, to run once: pinMode(triggerPin, OUTPUT); pinMode(echoPin, INPUT); Serial.begin(9600); digitalWrite(triggerPin, LOW); delayMicroseconds(2); } void loop() { // put your main code here, to run repeatedly: digitalWrite(triggerPin, HIGH); delayMicroseconds(10); digitalWrite(triggerPin, LOW); pulse_width = pulseIn(echoPin, HIGH); distance = (pulse_width*.343)/2; Serial.print("Distance = "); Serial.println(distance); Serial.println(" cm"); delay(500); }

will this work on infrared sensor?

will this project work with arduino nano ??

Hello sir...i really appreciate your videos....I would like to know if I can contact you thru email? I would like to ask some advice regarding my project....from the 🇵🇭🇵🇭🇵🇭...thank you in advance...