HC SR04 Ultrasonic Sensor Module

The HC-SR04 Ultrasonic Sensor Module offers precise distance measurement for Arduino, Raspberry Pi, and robotics projects. Ideal for obstacle detection, automation, and IoT applications, it ensures high accuracy with a range of 2cm to 400cm. Perfect for DIY electronics and smart systems!

The ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package, From 2cm to 400 cm or 1” to 13 feet. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with the Ultrasonic Sensor transmitter and a receiver module. This is easily interfaceable for many microcontrollers like Arduino uno r3, Microchip PIC and ST Microcontrollers.

Features of Arduino Ultrasonic Sensor :

1. Power Supply: +5V DC
2. Quiescent Current : <2mA
3. Working Current: 15mA
4. Effectual Angle: <15°
5. Ranging Distance : 2cm – 400 cm/1″ – 13ft
6. Resolution : 0.3 cm
7. Measuring Angle: 30 degree
8. Trigger Input Pulse width: 10uS minimum
9. Dimension: 45mm x 20mm x 15mm

Tutorial of Ultrasonic Sensor:

https://howtomechatronics.com/tutorials/arduino/ultrasonic-sensor-hc-sr04/

Best Online Shopping website for  Ultrasonic Sensor. Here you get HC SR04 Arduino Ultrasonic Sensor at a reasonable price in Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Multan, Quetta, Faisalabad and all over Pakistan.

What is Ultrasonic?

Ultrasound is high-pitched sound waves with frequencies higher than the audible limit of human hearing.

Human ears can hear sound waves that vibrate in the range from about 20 times a second (a deep rumbling noise) to about 20,000 times a second (a high-pitched whistling). However, ultrasound has a frequency of over 20,000 Hz and is therefore inaudible to humans.

Basic working principle of ultrasonic sensor

1. IO trigger for at 10µs high-level signal
2. The Module automatically sends eight cycles of ultrasonic burst at 40 kHz and detects whether there is a pulse signal back.
3. If the signal is reflected back, through a high level, time of high output IO duration is
   the time from sending ultrasonic to returning.