Ultrasonic Module Distance Sensor DC 5V for Arduino UNO R3 Robot 5pcs

Great Sensors for Arduino Project. Having Fun With Electronics and Programming!

Module Working Principle:

1. Pull the Trig pin to high level for more than 10us impulse, the module start ranging.
2. The module automatically sends eight 40KHz square wave to detect whether a signal is returned.
3. 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.
4. So we can calculated the distance easily.The distance=((Duration of high level)*(Sonic:340m/s))/2

Wiring Instructions: 

VCC ---- DC 5V

GND ---- Ground Wire

Trig ---- Control End

Echo ---- Receiving End

Specification:

Working Voltage: DC 5V

Nominal Frequency: 40KHz

Level Output: High 5V Low 0V

Induction Angle: No More Than 15 Degrees

Detection range: 2-450cm / 0.79"-177"

Accuracy: Up to 0.3cm / 0.12"

PCB Size: 45 x 21mm / 1.77" x 0.83" (L*W)

Fixed Hole Diameter: 2mm

Package Includes:

5 x HC-SR04 Distance Sensor (Not Include Jumper Wires)