The Ultrasonic Sonar Sensor HC-SR04 offers an accurate and efficient solution for non-contact distance measurement. Moreover, this sensor uses ultrasonic waves to detect objects, which makes it ideal for robotics, automation, and embedded system projects.
In addition, the module easily interfaces with Arduino and other microcontrollers. As a result, students, hobbyists, and engineers can quickly build distance-measuring and obstacle-detection systems.
๐ฌ Key Features
- โ๏ธ Accurate non-contact distance measurement using ultrasonic waves
- โ๏ธ 4-pin interface (VCC, GND, Trigger, Echo) for easy connection
- โ๏ธ Furthermore, compatible with Arduino and other microcontrollers
- โ๏ธ Stable performance with low power consumption
- โ๏ธ Compact size for embedded and robotics applications
- โ๏ธ Reliable detection with wide measurement range
๐ Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | Ultrasonic Sensor Module |
| Model | HC-SR04 |
| Working Voltage | DC 5V |
| Working Current | 15 mA |
| Working Frequency | 40 kHz |
| Measuring Range | 2 cm โ 4 m |
| Measuring Angle | 15ยฐ |
| Trigger Signal | 10 ยตs TTL Pulse |
| Echo Signal | TTL Output (Pulse Width) |
| Dimensions | 45 ร 20 ร 15 mm |
โ๏ธ Working Principle
- Firstly, the module sends an ultrasonic pulse at 40 kHz
- Secondly, the wave reflects after hitting an object
- Additionally, the sensor measures the time delay of the echo signal
- Therefore, users can calculate distance using the formula below:
Where:
- d = distance
- t = time of echo
- v = speed of sound (โ 340 m/s)
โ๏ธ Applications
- Firstly, it enables obstacle avoidance in robotics
- Secondly, it supports distance measurement systems
- Additionally, it works in smart parking and automation projects
- Therefore, it becomes essential for electronics labs, เฆเฆพเฆคเงเฆฐ เฆชเงเฆฐเฆเฆฒเงเฆช, and IoT development
๐ฏ Why Choose HC-SR04?
The HC-SR04 sensor delivers accuracy, simplicity, and versatility. Furthermore, its easy interface makes it perfect for beginners and professionals alike. Consequently, users can develop reliable and cost-effective electronic projects.
๐ Available at Kommullo Bangladesh
Buy the Ultrasonic Sensor HC-SR04 in Bangladesh from Kommullo Bangladesh (kommullo.com). Additionally, we offer a wide range of electronics and laboratory equipment at competitive prices. Finally, enjoy fast delivery and trusted service across Bangladesh.
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