HC-SR04 Ultrasonic Sensor

Rs. 115.00 inc. GST

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Description

The HC-SR04 Ultrasonic Sensor is widely used for non-contact distance measuring from 2cm – 400cm. The module includes ultrasonic transmitters, receiver and a control circuit.

The module works in the following way:

1. Send a 10 µs high level pulse to the trigger (TRIG) pin of the module from a microcontroller.

2.The module will automatically send eight internally generated 40khz pulses from the transmitter and receive the echo at the receiver.

3. A TTL level pulse will be sent from ECHO pin of the module. The width of the pulse is in proportion to the distance measured. Distance = (high level time * sound velocity / 2) . Generally sound velocity = 340 m/s

Timing Diagram

Technical Parameters:

1. Working Voltage: 5 VDC

2. Static current: Less than 2mA

3. Operating Current: 15mA

3. Output signal: Electric frequency signal, high level 5V, low level 0V

4. Sensor angle: Not more than 15 degrees

5. Detection distance: 2cm-400cm

6. Precision: Up to 0.3cm

7. Input trigger signal: 10us TTL impulse

8. Echo signal: Output TTL PWL signal

Additional information

Weight 0.013 kg

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