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This signal is then read back by the sensor and the duration of the received signal is reflected on the ECHO pin. There is a fantastic library for Arduino called NewPing that will do all the required work. More info here:. You must be logged in to post a comment. Artekit Labs is a growing start-up and online store that creates and builds electronics, breakout boards, development boards and gadgets for hobbyists, DIYers, makers and professionals. Email address:. You have the right to withdraw your consent at any time.
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Category: Accessories Tags: distance , measure , sensor , ultrasonic. Characteristics Supply voltage: 4. Monitor the ECHO pin. Comments You must be logged in to post a comment.
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HY-SRF05 Ultrasonic Sensor
Add the following snippet to your HTML:. The ultrasonic sensor measures the distance of the nearest object, sending the result to the serial port. It can work from 2 cm to 3 m. It measures the time spent by the signal to reach the object and return to the sensor.
HY-SRF05 Ultrasonic Distance Sensor Measuring Module For Arduino
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Arduino Uno and HY-SRF05 ultrasonic sensor example
The ultrasonic sound is pulsed at 40 kHz and is not audible to the human ear. These modules are commonly used on robotic vehicles for obstacle detection and avoidance. Because they use sound waves for detection they are not sensitive to light sources or optically reflective surfaces like IR can be. The fact that the sensors look like a couple of eyes adds to the cool factor as well. If an echo is not returned no object detected , the module will still lower the ECHO pin after a fixed delay. This delay may vary, but is about mSec on the modules that I have measured.