HC-SR04 Ultrasonic Distance Sensor Module
HC-SR04 Ultrasonic Sensor
The HC-SR04 Ultrasonic Sensor Module is a popular tool for measuring distance and detecting objects. It’s small, easy to use, and combines everything you need—a transmitter, receiver, and control circuit—in one module. It works like a sonar, sending out sound waves to measure the distance to objects, just like how bats and dolphins sense their surroundings.
This HC-SR04-Ultrasonic Range Finder can measure distances from 2 cm up to 400 cm with high accuracy, about 3 mm. It’s reliable for many projects, from robotics to simple object detection, and works well even in different lighting conditions.Â
This HC SR04 ultrasonic distance sensor module has two main pins, Trigger and Echo, which connect easily to microcontrollers like Arduino, making it perfect for projects where you need non-contact distance sensing.
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Check out the best selection of Distance Sensors.
Note:Â The HC-SR04 sensor has a 5V output (which needs to be reduced to 3.3V to work with the Raspberry Pi).
Read our blog on how to connect ultrasonic sensor to Raspberry Pi.
Looking for the Best Price for the HC SR 04 Ultrasonic Sensor Online?
At Robocraze, the price starts at â‚ą69, and may vary based on ongoing offers, stock availability, and bundled deals. We ensure high-quality, performance-tested modules that meet reliable accuracy standards for robotics, automation, and IoT applications. Unlike low-grade alternatives in the market, our HC-SR04 sensors undergo quality checks to deliver stable distance measurements and consistent trigger/echo response. With competitive pricing, genuine components, and technical support, Robocraze provides better value compared to many generic sellers online.
Features:
- Non-Contact Distance Sensor
- Measures 2cm to 400cm
- Sonar technology for accuracy
- Suitable for robotics and DIY projects
- Stable performance indoors and outdoors
- Durable materials
- Easy to install, user-friendly
- 5V DC power supply
- High resolution: 0.3 cm
- Best ultrasonic sensor for Arduino and Raspberry Pi projects
Applications:
- Used to avoid and detect obstacles with robots like biped robots, obstacle avoider robots, path-finding robots, etc.
- Used to measure the distance within a wide range of 2cm to 400cm
- Can be used to map the objects surrounding the sensor by rotating it
- The depth of certain places like wells, pits, etc. can be measured since the waves can penetrate through the water
Read our blog explaining the ultrasonic sensor working.
Pinout
HC SR 04 Ultrasonic Sensor Specifications Comparison:
| Parameter | HC-SR04 Ultrasonic Sensor (Robocraze) | Typical Low-Grade Alternative |
|---|---|---|
| Operating Voltage | 5V DC | 5V DC |
| Operating Current | 15mA | 15–20mA |
| Measuring Range | 2cm – 400cm | 3cm – 300cm |
| Measuring Angle | < 15° | 15–20° |
| Accuracy | ±3mm | ±5mm or higher |
| Frequency | 40 kHz | 40 kHz |
| Build Quality | Quality-tested PCB with stable soldering | Inconsistent soldering quality |
| Performance Stability | Reliable echo response and stable readings | Possible signal noise and unstable readings |
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HC-SR04 Ultrasonic Distance Sensor Module
HC-SR04 Ultrasonic Sensor
The HC-SR04 Ultrasonic Sensor Module is a popular tool for measuring distance and detecting objects. It’s small, easy to use, and combines everything you need—a transmitter, receiver, and control circuit—in one module. It works like a sonar, sending out sound waves to measure the distance to objects, just like how bats and dolphins sense their surroundings.
This HC-SR04-Ultrasonic Range Finder can measure distances from 2 cm up to 400 cm with high accuracy, about 3 mm. It’s reliable for many projects, from robotics to simple object detection, and works well even in different lighting conditions.Â
This HC SR04 ultrasonic distance sensor module has two main pins, Trigger and Echo, which connect easily to microcontrollers like Arduino, making it perfect for projects where you need non-contact distance sensing.
Â
Check out the best selection of Distance Sensors.
Note:Â The HC-SR04 sensor has a 5V output (which needs to be reduced to 3.3V to work with the Raspberry Pi).
Read our blog on how to connect ultrasonic sensor to Raspberry Pi.
Looking for the Best Price for the HC SR 04 Ultrasonic Sensor Online?
At Robocraze, the price starts at â‚ą69, and may vary based on ongoing offers, stock availability, and bundled deals. We ensure high-quality, performance-tested modules that meet reliable accuracy standards for robotics, automation, and IoT applications. Unlike low-grade alternatives in the market, our HC-SR04 sensors undergo quality checks to deliver stable distance measurements and consistent trigger/echo response. With competitive pricing, genuine components, and technical support, Robocraze provides better value compared to many generic sellers online.
Features:
- Non-Contact Distance Sensor
- Measures 2cm to 400cm
- Sonar technology for accuracy
- Suitable for robotics and DIY projects
- Stable performance indoors and outdoors
- Durable materials
- Easy to install, user-friendly
- 5V DC power supply
- High resolution: 0.3 cm
- Best ultrasonic sensor for Arduino and Raspberry Pi projects
Applications:
- Used to avoid and detect obstacles with robots like biped robots, obstacle avoider robots, path-finding robots, etc.
- Used to measure the distance within a wide range of 2cm to 400cm
- Can be used to map the objects surrounding the sensor by rotating it
- The depth of certain places like wells, pits, etc. can be measured since the waves can penetrate through the water
Read our blog explaining the ultrasonic sensor working.
Pinout
HC SR 04 Ultrasonic Sensor Specifications Comparison:
| Parameter | HC-SR04 Ultrasonic Sensor (Robocraze) | Typical Low-Grade Alternative |
|---|---|---|
| Operating Voltage | 5V DC | 5V DC |
| Operating Current | 15mA | 15–20mA |
| Measuring Range | 2cm – 400cm | 3cm – 300cm |
| Measuring Angle | < 15° | 15–20° |
| Accuracy | ±3mm | ±5mm or higher |
| Frequency | 40 kHz | 40 kHz |
| Build Quality | Quality-tested PCB with stable soldering | Inconsistent soldering quality |
| Performance Stability | Reliable echo response and stable readings | Possible signal noise and unstable readings |
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
HC-SR04 Ultrasonic Sensor
The HC-SR04 Ultrasonic Sensor Module is a popular tool for measuring distance and detecting objects. It’s small, easy to use, and combines everything you need—a transmitter, receiver, and control circuit—in one module. It works like a sonar, sending out sound waves to measure the distance to objects, just like how bats and dolphins sense their surroundings.
This HC-SR04-Ultrasonic Range Finder can measure distances from 2 cm up to 400 cm with high accuracy, about 3 mm. It’s reliable for many projects, from robotics to simple object detection, and works well even in different lighting conditions.Â
This HC SR04 ultrasonic distance sensor module has two main pins, Trigger and Echo, which connect easily to microcontrollers like Arduino, making it perfect for projects where you need non-contact distance sensing.
Â
Check out the best selection of Distance Sensors.
Note:Â The HC-SR04 sensor has a 5V output (which needs to be reduced to 3.3V to work with the Raspberry Pi).
Read our blog on how to connect ultrasonic sensor to Raspberry Pi.
Looking for the Best Price for the HC SR 04 Ultrasonic Sensor Online?
At Robocraze, the price starts at â‚ą69, and may vary based on ongoing offers, stock availability, and bundled deals. We ensure high-quality, performance-tested modules that meet reliable accuracy standards for robotics, automation, and IoT applications. Unlike low-grade alternatives in the market, our HC-SR04 sensors undergo quality checks to deliver stable distance measurements and consistent trigger/echo response. With competitive pricing, genuine components, and technical support, Robocraze provides better value compared to many generic sellers online.
Features:
- Non-Contact Distance Sensor
- Measures 2cm to 400cm
- Sonar technology for accuracy
- Suitable for robotics and DIY projects
- Stable performance indoors and outdoors
- Durable materials
- Easy to install, user-friendly
- 5V DC power supply
- High resolution: 0.3 cm
- Best ultrasonic sensor for Arduino and Raspberry Pi projects
Applications:
- Used to avoid and detect obstacles with robots like biped robots, obstacle avoider robots, path-finding robots, etc.
- Used to measure the distance within a wide range of 2cm to 400cm
- Can be used to map the objects surrounding the sensor by rotating it
- The depth of certain places like wells, pits, etc. can be measured since the waves can penetrate through the water
Read our blog explaining the ultrasonic sensor working.
Pinout
HC SR 04 Ultrasonic Sensor Specifications Comparison:
| Parameter | HC-SR04 Ultrasonic Sensor (Robocraze) | Typical Low-Grade Alternative |
|---|---|---|
| Operating Voltage | 5V DC | 5V DC |
| Operating Current | 15mA | 15–20mA |
| Measuring Range | 2cm – 400cm | 3cm – 300cm |
| Measuring Angle | < 15° | 15–20° |
| Accuracy | ±3mm | ±5mm or higher |
| Frequency | 40 kHz | 40 kHz |
| Build Quality | Quality-tested PCB with stable soldering | Inconsistent soldering quality |
| Performance Stability | Reliable echo response and stable readings | Possible signal noise and unstable readings |
