Ultrasonic Distance Sensor Module - HC-SR04
Description:
The CS100 Ultrasonic Distance Measuring Sensor Module, also known as HC-SR04, is a widely-used sensor module for measuring distance in electronic projects. Here's a description of its features:
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Ultrasonic Technology: The sensor module utilizes ultrasonic sound waves to measure distance. It emits ultrasonic pulses and measures the time it takes for the pulses to bounce back after hitting an object. By calculating the time taken and the speed of sound in air, the module can determine the distance to the object.
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Detection Range: The HC-SR04 sensor module typically has a detection range of 2cm to 400cm (0.79 inches to 157.48 inches). The maximum range may vary depending on factors such as the surface properties of the object and environmental conditions.
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High Accuracy: With its ultrasonic technology, the sensor module offers high accuracy in distance measurements. It can detect objects with precision, making it suitable for applications requiring precise distance sensing.
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Operating Principle: The HC-SR04 sensor module consists of an ultrasonic transmitter (or sender) and receiver pair. The transmitter emits ultrasonic pulses, and the receiver detects the reflected pulses. By measuring the time difference between sending and receiving the pulses, the module calculates the distance to the object.
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Operating Voltage: The sensor module typically operates at a voltage of 5V DC, making it compatible with common microcontroller platforms like Arduino and Raspberry Pi.
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Trigger and Echo Pins: The HC-SR04 sensor module features two pins: a trigger pin and an echo pin. The trigger pin is used to send a trigger signal to initiate the ultrasonic transmission, while the echo pin is used to receive the reflected ultrasonic pulses and generate a corresponding output signal.
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Simple Interface: The sensor module has a simple interface, requiring only a few digital pins for connection to a microcontroller. This ease of use makes it popular among hobbyists, students, and electronics enthusiasts for various distance sensing projects.
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Applications: The HC-SR04 sensor module is commonly used in robotics, automation, security systems, parking assistance systems, and other applications where accurate distance measurement is required.
Overall, the CS100 Ultrasonic Distance Measuring Sensor Module (HC-SR04) offers a reliable and cost-effective solution for distance sensing applications, with high accuracy and simple integration into electronic projects.
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