ELEGOO 5PCS HC-SR04 Ultrasonic Module Distance Sensor Kit
- NON-CONTACT DISTANCE SENSING: Add object detection to robot navigation, parking-distance prototypes, automatic lids, counters and interactive projects; each HC-SR04 uses a 40 kHz ultrasonic burst and echo timing to estimate distance
- 5-PACK FOR REPEATABLE PROTOTYPING: Use multiple HC-SR04 modules across builds, compare sensor positions or keep spares for testing and replacement; each module integrates an ultrasonic transmitter, receiver and control circuit
- 5 V MODULE WITH 3-450 CM RANGE: Connect VCC, Trig, Echo and GND, use a 10 μs trigger pulse and measure Echo duration; resolution is 0.3 cm with an effective angle under 15°, while the controller board and external power source are not included
- PROTECT 3.3 V GPIO: The HC-SR04 operates from 5 V and its Echo output is 5 V, so use a voltage divider or suitable level shifting with 3.3 V inputs; keep the module dry and use it for prototyping rather than calibrated measurement
- FOR ROBOTICS & STEM PROJECTS: Suitable for distance measurement, object detection, automatic lids, parking alerts, robot navigation and other hands-on electronics builds
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Industrial Electrical , Sensors , Proximity Sensors , Ultrasonic |
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Safety Information
keep away from the children under 3 years old
ELEGOO HC-SR04 Ultrasonic Sensor is a device that can measure the distance to an object by using sound waves. It measures distance by sending out a sound wave at a specific frequency and listening for that sound wave to bounce back. By recording the elapsed time between the sound wave being generated and the sound wave bouncing back, it is possible to calculate the distance between the sonar sensor and the object.
The HC-SR04 ultrasonic sensor can be used in projects that require non-contact distance measurement, including obstacle avoidance, parking alerts and robot navigation. HC-SR04 provides 3-450 cm non-contact measurement function, the ranging accuracy can reach to 3 mm. The modules include ultrasonic transmitters, receiver and control circuit.
Operating Principle of Ultrasonic Sensor
As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The sensor head emits an ultrasonic wave and receives the wave reflected back from the target. Ultrasonic Sensors measure the distance to the target by measuring the time between the emission and reception. The distance can be calculated with the following formula: Distance L = 1/2 × T × C where L is the distance, T is the time between the emission and reception, and C is the sonic speed. (The value is multiplied by 1/2 because T is the time for go-and-return distance.)
For Electronics Project with Ultrasonic Sensor
ELEGOO Ultrasonic Sensor HC-SR04 is easy to use since we will be using a library specifically designed for this sensor, which can be downloaded from ELEGOO. To use it for projects you would need an ELEGOO UNO R3 controller board.
Technical Specification
Power Supply: 5 V DC
Quiescent Current: 3 mA
Working Current: < 5 mA
Effectual Angle: < 15°
Ranging Distance: 3-450 cm/ 1.2-177 inch
Resolution: 0.3 cm
Measuring Angle: 30°
Trigger Input Pulse width: 10 μs
Dimension: 45 × 20 × 15 mm
Product Package
5 × HC-SR04 Ultrasonic Sensors
10 × Female-Male Dupont Cables
10 × Female-Female Dupont Cables
1 × Exquisite package box
Protected with the thermoplastic film
Product details
| Main Specification | |
|---|---|
| Specific Uses For Product | Distance Measurement or Electronics Project or Obstacle Avoidance or Robotics or STEM learning |
| Manufacturer | ELEGOO |
| Unit Count | 1 Count |
| Item dimensions L x W x H | 0.59 x 1.77 x 1.18 inches |
| Brand | Elegoo |
| UPC | 719377200301 746591610333 |
| Number of Items | 5 |
| Output Type | TTL |
| Included Components | Ultrasonic Sensor |
| Sensing Distance | 2 centimeters |
| Measuring Range | 3 centimeters to 450 centimeters |
| Material | Aluminum |
| Global Trade Identification Number | 00746591610333 |
| Item Weight | 9.07 g |
| Technical Details | |
| Part Number | EL-SM-001 |
| Model | EL-SM-001 |
| Material Type | Aluminum |
| Measurements | |
| Item Dimensions | 0.59 x 1.77 x 1.18 inches |
| Others | |
| Item Highlight | STEM Projects or Obstacle Avoidance or Compatible with Arduino UNO MEGA Nano Robot XBee ZigBee or Measure 3-450 cm or Parking Alerts |
| Product Type | Ultrasonic |
| Maximum Supply Voltage | 5 volts |
Shipping & Delivery
At GofinchKart Australia, we aim to deliver your order quickly and safely.
Domestic Shipping (Australia):
Orders are typically delivered within 3–7 business days.
International Shipping:
Estimated delivery time is 12–26 business days, depending on the destination and customs processing.
Once your order has been dispatched, you will receive a tracking number. Delivery times may vary during public holidays or due to unforeseen delays.