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- Using IO trigger for high level signal.( Not less that 10us),The Module sends eight 40 kHz automatically and detect whether there is a pulse signal back.
- Operating voltage of this 20 Pieces Ultrasonic Module is 5VDC.
- HC-SR04 consists of ultrasonic transmitter, receiver, and control circuit. Connection mode: VCC, trig (control), echo (receiving end), GND ground wire.
- Perfect for all kind of projects that need distance measurements, e.g. avoiding obstacles.
HC-SR04 Ultrasonic Distance Sensor Module (Pack of 20)
This is a Ultrasonic Distance Sensor Module of 20 Quantity. Ultrasonic Module HC-SR04 Distance Sensor can measure the distance to an object by using echo. It can measure the distance between the sensor and the object by the time from the sound wave of a specific frequency to the time when the sound wave is heard to bounce back.
The HC-SR04 Ultrasonic Distance Sensor Pack of 20 is perfect for all kind of projects that need distance measurements, e.g. avoiding obstacles. HC-SR04 provides 2cm-500cm non-contact measurement function, the ranging high accuracy can reach to 3mm.
Features:
- Measurement Range: 2 cm to 400 cm (0.8 inches to 13 feet)
- Accuracy: Approximately 0.3 cm (0.1 inches)
- Power Supply: 5V DC
- Current Consumption:
- Quiescent current: < 2mA
- Working current: ~15mA
- Measuring Angle: Effective angle < 15 degrees
- Dimensions: 45mm x 20mm x 15mm
Applications:
- Can be used with Arduino to make robotic projects based on distance, position & motion sensing.
- Can be used in obstacle avoiding robot.
- Can be used in IoT devices using any other Microcontroller board.
Take a look at our blog on interfacing ultrasonic sensor with Arduino. Whether you're new to this or already have some experience, this guide will make things clear for you to understand ultrasonic sensor interfacing with Arduino.
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Package Includes:
- 20 x Ultrasonic Distance Sensor - HC-SR04
Specifications:
| Type of Sensor |
Ultrasonic Sensor |
| Voltage | 5VDC |
| Detection distance | 2cm-500cm |
| Static current | < 2mA |
| Level output | High-5V |
| High precision | up to 0.3cm |
1. What is the operating voltage of the HC-SR04 sensor?
- The HC-SR04 operates on a 5V DC power supply. It is compatible with most microcontrollers, including Arduino and Raspberry Pi.
2. How accurate is the HC-SR04 sensor?
- The HC-SR04 sensor has an accuracy of approximately 0.3 cm (0.1 inches). This makes it suitable for most hobbyist and DIY projects where precise distance measurement is required.
3. What is the maximum and minimum range of the HC-SR04 sensor?
- The sensor can measure distances from 2 cm to 400 cm (0.8 inches to 157 inches). It is effective for both short-range and long-range distance measurements.
4. What are some common applications of the HC-SR04 sensor?
The HC-SR04 sensor is commonly used in:
Robotics: For obstacle detection and avoidance.
Automation: In various automation projects for distance measurement.
DIY Projects: Popular among hobbyists and makers for creating interactive projects.
