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TSquareY1
HC-SR04 Ultrasonic Sensor
★★★★★
0.0/5 (0 reviews)₹65
₹89
27% off
The HC-SR04 is the industry-standard ultrasonic ranging module, providing 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. It includes an ultrasonic transmitter, a receiver, and a control circuit. This module is a mechanical necessity for autonomous rovers, parking sensors, and digital tape measures, as it uses the "time of flight" of sound waves (340 m/s) to calculate distance with high stability.
✓ In Stock (30 available)
1
▪Echo-Location Precision: The HC-SR04 is a mechanical necessity because it is unaffected by sunlight or black materials that often "blind" infrared sensors, making it more reliable for long-range outdoor or brightly lit indoor detection.
▪Simplified 4-Pin Interface: Featuring VCC, Trigger, Echo, and Ground, this module is a "drop-in" component that requires only two digital pins on your microcontroller, preserving resources for other peripherals.
▪High-Resolution Sonar: With a resolution of 0.3cm, this sensor is precise enough for liquid level monitoring in water tanks or as a precision limit switch in CNC and 3D printing applications.
▪Robust Signal Processing: The onboard circuitry handles the complex 40kHz burst generation and signature detection, providing a clean TTL pulse that represents the travel time, simplifying your firmware logic.
▪Universal Mounting Support: Its iconic "eyes" design fits standard servo-driven sonar brackets, allowing for a scanning 180° field of view for advanced mapping robots.
Operational Voltage
5V DC
Operating Current
15mA
Operating Frequency
40kHz
Max Range
400cm (4 meters)
Min Range
2cm
Ranging Angle
15 Degree
Trigger Input Signal
10µS TTL pulse.
Echo Output Signal
TTL level signal (proportional to distance)
