SR-04 Ultrasonic Distance Measuring Sensor Module

The HC-SR04 Ultrasonic Sensor Module is one of the most popular and reliable distance measurement sensors used in Arduino, Raspberry Pi, and robotics projects. It provides accurate and fast distance detection using ultrasonic sound waves, making it an excellent choice for object detection, obstacle avoidance, and automation systems.

Key Features of HC-SR04 Ultrasonic Sensor:

• Wide Measurement Range: Accurately measures distances from 2cm to 400cm, offering excellent versatility for various distance-sensing applications.
• High Precision Output: Provides reliable readings with an impressive accuracy of up to ±1cm, ensuring stable and consistent performance.
• Low Power Consumption: Operates efficiently on 5V DC and consumes less than 15mA current — perfect for low-power or battery-operated devices.
• Simple Interfacing: Equipped with Trigger and Echo pins for easy communication with Arduino, ESP32, Raspberry Pi, and other microcontrollers.
• Compact and Lightweight Design: Measuring only 45mm x 20mm x 15mm, it fits easily into tight spaces and small enclosures.
• Fast Response Time: Provides near-instant readings, ideal for real-time obstacle detection and motion tracking.
• Durable and Long-Lasting: Made with high-quality materials for stability and performance even in varied environments.
• Budget-Friendly Solution: Offers professional-grade performance at a low cost, making it suitable for DIY hobbyists, students, and engineers.

HC-SR04 Ultrasonic Sensor Pinout:

• VCC: +5V power supply input
• Trig (Trigger): Sends ultrasonic pulses when activated
• Echo: Outputs a pulse signal when an echo is received
• GND: Ground connection

The HC-SR04 sensor consists of two main components – a transmitter and a receiver – that look like “eyes.” The transmitter sends out ultrasonic waves that bounce off objects and return to the receiver. The sensor then calculates distance using the simple formula:

Distance = (Speed of Sound × Time) / 2

Why Choose the HC-SR04 Ultrasonic Sensor?

Whether you're building a smart robot, parking sensor, automation system, or distance measuring tool, the HC-SR04 offers precision, reliability, and simplicity. It’s one of the most cost-effective and efficient sensors available for distance measurement.

Buy the HC-SR04 Ultrasonic Sensor Module online in Pakistan for your next robotics or automation project and experience accurate, stable, and fast distance detection at an unbeatable price.