VendorMy Store
SKU:HCSR04-ULTRASONIC
HC-SR04 Ultrasonic Distance Sensor Module — 2cm to 400cm
Regular price
Rs.165.00
Sale price:
Rs.165.00
Regular price:
Sale:
-0%
Shipping calculated at checkout.
In stock, ready to ship
HC-SR04 Ultrasonic Distance Sensor Module — 2cm to 400cm
The HC-SR04 is the most popular ultrasonic distance sensor in the Arduino community, and for good reason. It uses sound waves to measure distance with impressive accuracy — from just 2cm up to 400cm — without any physical contact. Whether you're building a robot that avoids obstacles, a parking sensor, or a liquid level detector, the HC-SR04 delivers reliable results every time.
Technical Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 5V DC |
| Quiescent Current | <2 mA |
| Working Current | 15 mA |
| Measuring Range | 2cm – 400cm |
| Accuracy | ±3mm |
| Measuring Angle | 15° |
| Trigger Input Signal | 10μs TTL pulse |
| Echo Output Signal | TTL level signal (proportional to distance) |
| Operating Frequency | 40 kHz |
| Dimensions | 45mm × 20mm × 15mm |
Pinout
| Pin | Name | Description |
|---|---|---|
| 1 | VCC | 5V Power Supply |
| 2 | TRIG | Trigger Input (send 10μs pulse to start measurement) |
| 3 | ECHO | Echo Output (pulse width = distance) |
| 4 | GND | Ground |
Key Features
- Non-contact distance measurement: 2cm to 400cm
- High accuracy: ±3mm resolution
- Simple 4-pin interface — works with any microcontroller
- Narrow 15° beam angle for precise directional sensing
- Compatible with Arduino, ESP32, STM32, PIC, Raspberry Pi
Applications
- Obstacle avoidance in robots and autonomous vehicles
- Parking distance sensors
- Liquid level measurement
- People/object counting systems
- Security and intrusion detection