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).
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 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 back to the sensor.
Wiring
+5V(positive)
Trig(control)
Echo(receive)
GND(negative)
Features
Measures the distance within a wide range of 2cm to 400cm
Stable performance
Accurate distance measurement
Good quality Acrylic Mounting Bracket.
High-density
Small blind distance
Specification
HC-SR04 Ultrasonic Range Finder Sensor
| PCB Dimension | 4.5*2.0CM |
| Connection | VCC, trig(Control), echo(Receive), Out, GND |
Cartoon Ultrasonic Sensor Mounting Bracket
| Usage | fixed ultrasonic sensor modules and other products |
| Color | red or blue(sent randomly) |
| Input Supply voltage (VDC) | 5 |
| Operating Current (mA) | <2 |
| Sensing angle (Degree) | < 15° |
| Sensing distance (cm) | 2 ~ 450 |
| Accuracy (cm) | 0.3 |
| Thickness (mm) | 2.8 ~ 3.1 |
| Inner diameter (mm) | 16 |
| Diameter of mounting hole (mm) | 3.8 |
| Material | acrylic |
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