SKU: SENS-4139
📋 GST Invoice Available

HY-SRF05 Ultrasonic Sensor Module - 5-Pin Interface, 3cm-4.5m Range

₹146.00 (Inclusive of all taxes)
Out of Stock

The HY-SRF05 is a 5V DC ultrasonic distance sensor module offering a 3cm to 4.5m measurement range with up to 0.3cm accuracy. Its 5-pin interface (VCC, Trig, Echo, OUT, GND) provides direct compatibility with Arduino, Raspberry Pi, ESP32, and other 5V/3.3V microcontroller platforms for robotics and automation projects.

Features

  • Wide ultrasonic detection range from 3cm to 4.5 meters.
  • High measurement accuracy up to 0.3cm with a narrow ≤15° detection angle.
  • 5-pin interface (VCC, Trig, Echo, OUT, GND) for flexible digital pulse signal integration.
  • Low power consumption with less than 2mA static current at 5V DC operation.
  • Breadboard-friendly module design for rapid prototyping and testing.

Out of stock

Description

The HY-SRF05 ultrasonic sensor operates on the time-of-flight (ToF) principle, emitting a 40kHz ultrasonic pulse and measuring the echo return time to calculate distance. This dual-transducer design provides stable performance and reliable readings in varied environments.

Engineered for integration into automated systems, the module outputs a digital pulse signal compatible with standard microcontroller input pins. Its operating temperature range of -20°C to +60°C ensures functionality in both indoor and basic outdoor applications, making it suitable for obstacle detection and proximity sensing.

Key Features

  • Dual ultrasonic transducers (transmitter and receiver) for consistent signal integrity.
  • Digital pulse output (5V high, 0V low) simplifies interfacing with microcontrollers.
  • Low static current draw (<2mA) optimizes power efficiency for battery-powered devices.
  • Compact 45mm x 21mm PCB with standard 2.54mm pin spacing for breadboard compatibility.
  • Wide operating temperature range (-20°C to +60°C) supports use in diverse environmental conditions.
  • Narrow effective beam angle (≤15°) enhances measurement precision by reducing peripheral interference.

Applications

  • Robotics obstacle avoidance and navigation systems.
  • Smart parking sensor systems for vehicle detection.
  • Industrial level monitoring and bin filling applications.
  • DIY drone altitude hold and ground proximity sensing.
  • Interactive art installations and presence detection triggers.

Technical Specifications

ModelHY-SRF05
Operating Voltage5V DC
Static Current< 2mA
Output SignalDigital Pulse Signal
High Level Output5V
Low Level Output0V
Detection Distance3cm to 450cm (4.5m)
Recommended Detection Angle30°
Effective Sensor Angle≤ 15°
Measurement AccuracyUp to 0.3cm
Operating Temperature-20°C to +60°C
Pin ConfigurationVCC, Trig, Echo, OUT, GND
Interface Type5-pin Electronic Brick
Dimensions (L x W)45mm × 21mm
Weight10g

Frequently Asked Questions

What is the pinout and wiring diagram for the HY-SRF05 sensor?

The HY-SRF05 uses a 5-pin configuration: VCC (5V), Trig (Trigger Input), Echo (Echo Output), OUT (Optional Digital Output), and GND (Ground). Connect VCC to 5V, GND to ground, Trig to a microcontroller output pin, and Echo to a microcontroller input pin. The OUT pin can be left disconnected or used for a secondary digital signal.

What is the maximum and minimum measurable distance?

The sensor has a specified detection range from 3cm (minimum) up to 450cm or 4.5 meters (maximum). For optimal accuracy, the recommended working range is between 5cm and 3 meters. Objects closer than 3cm may not be detected reliably.

Is the HY-SRF05 compatible with 3.3V logic microcontrollers like ESP32?

Yes, but with consideration. The module requires a 5V supply on its VCC pin. The Trig input is 5V-tolerant. The Echo output is a 5V digital signal, which may exceed the 3.3V logic high threshold of some MCUs; using a simple voltage divider (e.g., two resistors) on the Echo line is recommended for safe operation with 3.3V systems.

How do I calculate distance from the sensor's pulse output?

Distance is calculated using the time-of-flight principle. Send a 10µs high pulse to the Trig pin. The Echo pin will output a pulse width proportional to the distance. Measure the pulse duration in microseconds. Distance (cm) = (Pulse Duration (µs) * Speed of Sound (0.0343 cm/µs)) / 2.

What is the purpose of the fifth (OUT) pin on the module?

The OUT pin provides an alternative digital output that goes high when an object is detected within a pre-set threshold range. It can be used for simple proximity detection without requiring pulse timing code, simplifying integration for basic on/off obstacle sensing applications.

Package Includes

  • 1 x HY-SRF05 Ultrasonic Sensor Module (5-pin)

Additional Information

Weight 0.02 kg
Dimensions 6 × 5 × 4 cm