This HC-SR04-Ultrasonic Range Finder is a very popular sensor that is found in many applications where it requires measuring distance and detecting objects.
The module has two eyes like projects in the front which forms the Ultrasonic transmitter and Receiver. The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do.
This Ultrasonic Sensor module is a transmitter, a receiver, and a control circuit in one single pack!! It has very handy and compact construction. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).
There are many low-cost versions of the HC-SR04 Ultrasonic Sonar Sensor available. A key difference can be seen on the back of the PCB: high-quality sensors typically have more components, while cheaper variants have noticeably fewer.
The Trigger and the Echo pins are the I/O pins of this module and hence they can be connected to the I/O pins of the microcontroller/Arduino. When the receiver detects the return wave the Echo pin goes high for a particular amount of time which will be equal to the time taken for the wave to return to the sensor. Featured By RoboticsBD.
Note: PCB might be different from the picture as per stock
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Ultrasonic Ranging Module HC-SR04 provides 2cm-400cm non-contact distance sensing capabilities, Ranging accuracy up to 3mm. RoboticsBD
Application :
Obstacle avoidance: The HC-SR04 can be used in robotic applications to detect obstacles and avoid collisions.
Distance measurement: The sensor can be used to measure the distance to an object for various applications, such as measuring the height of a surface or determining the distance between two points.
Object detection: The HC-SR04 can be used to detect the presence of objects and trigger an action, such as turning on a light or opening a door.
Navigation: The sensor can be used in navigation systems to determine the distance to an object and adjust the position or trajectory accordingly.
Level detection: The HC-SR04 can be used in level detection applications, such as measuring the level of liquid in a container or determining the height of a surface.
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Features :
- Measures the distance within a wide range of 2cm to 400cm
- Stable performance
- Accurate distance measurement
- High-density
- Small blind distance. RoboticsBD
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| General Specification |
| Model | HC-SR04 |
| Operating Voltage (VDC) | 5 |
| Average Current Consumption (mA) | 2 |
| Frequency(Hz) | 40000 |
| Sensing Angle | 15° |
| Max. Sensing Distance (cm) | 450 |
| Weight (gm) | 9 |
| Sensor Cover Dia. (mm) | 16 |
| PCB Size ( L x W ) mm | 45 x 20 |
| Shipment Weight | 0.014 kg |
| Shipment Dimensions | 5 × 4 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
Power supply: Ensure that the power supply used with the HC-SR04 is within the recommended voltage and current limits to avoid damaging the sensor.
Environmental interference: The HC-SR04 may produce false readings if there is significant environmental interference, such as echoes from nearby surfaces or reflections from objects. Proper placement and shielding should be used to reduce these effects.
Maximum range: The maximum range of the HC-SR04 is limited and the sensor may not produce accurate readings for objects beyond this range. Make sure to take this into consideration when using the sensor for distance measurement applications.
Package Includes:
1 x HC-SR04-Ultrasonic Range Finder
