HC-SR04 Ultrasonic Distance Sensor Module

The HC-SR04 Ultrasonic Distance Sensor Module is a widely-used non-contact sensor for measuring distance and detecting objects in various DIY, Arduino, and robotics projects.

🔹 Reliable Distance Sensing:
Uses ultrasonic waves (like sonar) to measure distance between the sensor and an object, similar to how bats and dolphins navigate.

🔹 Accurate Range Measurement:

• Measures distances from 2cm to 400cm

• High resolution of 0.3cm ensures precise detection

🔹 Built-in Transmitter & Receiver:
Combines ultrasonic transmitter, receiver, and control circuit in one compact module

🔹 Microcontroller Compatibility:
Easily interfaces with Arduino, Raspberry Pi, ESP8266, ESP32, and other boards using the Trigger and Echo pins

🔹 Stable Operation:
Performs reliably in a variety of indoor lighting and environmental conditions

🔹 Power Requirements:
Operates on +5V DC, with a working current of 15mA

🔹 Note for Raspberry Pi Users:
The 5V output should be reduced to 3.3V logic level for safe operation

✅ Applications:

• Obstacle avoidance for robots and automated vehicles

• Object detection in DIY security systems

• Measuring depth in wells, tanks, and pits

• Object mapping when mounted on a rotating servo

• Ideal for bipedal robots, path-finding robots, and distance meters

✅ Specifications:

• Power Supply: 5V DC

• Working Current: 15mA

• Ranging Distance: 2 cm – 400 cm

• Resolution: 0.3 cm

• Measuring Angle: 30°

• Output Signal: Electrical frequency signal

• Dimensions: 3 x 2 x 1 cm

• Weight: 15g

✅ Package Includes:

• 1 x HC-SR04 Ultrasonic Distance Sensor Module

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🔗 For more sensors and distance measuring modules, click here: Explore More Sensors