Product Description
Smraza 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.
HC-SR04 Ultrasonic Distance Sensor 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 hight accuracy can reach to 3mm.
Smraza is a professional manufacturer on making all electronics components compatible with Arduino and Raspberry Pi. If you have any technical questions, please let us know to improve it.
For Arduino Project with Ultrasonic Sensor
Smraza Ultrasonic Module HC-SR04 Distance Sensor is cheap and easy to start. You can download the relevant tutorial to reference from our web smraza.com.
Smraza HC-SR04 consists of ultrasonic transmitter, receiver, and control circuit. Connection mode: VCC, trig (control), echo (receiving end), GND ground wire.
Ultrasonic Sensor Module Working Principle
Pull the Trig pin to high level for more than 10us impulse, the module start ranging.
The module automatically sends eight 40KHz square wave to detect whether a signal is returned.
Finished ranging, If you find an object in front, Echo pin will be high level, and based on the different distance, it will take the different duration of high level.
So we can calculated the distance easily. The distance = ((Duration of high level)*(Sonic :340m/s))/2. Distance L = 1/2 × T × C
Technical Parameters
1. Use voltage: DC 5V
2. Quiescent current: less than 2mA
3. Level output: high 5V low 0V
4. Induction angle: no more than 15 degrees(<15°)
5. Detection range: 0.78~196 in/ (2cm~500cm)
6. High accuracy: up to 0.12 in/(0.3 cm)
7. Trigger Input Pulse width: 10uS
8. Dimensions: 1.3 x 0.4 x 0.1 inch/3.03 x 1 x 0.25 cm (L*W*H)
Package Include 5 x HC-SR04 Distance Sensor 2 x Cartoon Mounting Bracket(Support HC-SR04 only) 10 x Male to Female Jumper Wires
Is Discontinued By Manufacturer : No
Product Dimensions : 6.4 x 3.2 x 1.2 inches; 2.89 ounces
Item model number : S03sF
Selling Start Date : June 10, 2016
Manufacturer : Smraza
Stock number : CA1JG09DCK
Country of Origin : China
Test mode :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.
The detection zone: 0.78~196 in/ (2cm~500cm); High precision: up to 0.12 in/(0.3 cm) Effectual angle: less than 15°
Power supply: 5V DC; Quiescent current: less than 2mA.
Test distance = ((Duration of high level)*(Sonic :340m/s))/2
Package included: 5pcs HC-SR04+ 2pcs Mounting Bracket(support HC-SR04 only)
