PING Ultrasonic Distance Sensor
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Hello, Omar. There isn't really an angle here, but here is the working theory for this sensor's application. br>Parallax, Inc. is a company that manufactures and sells parallax products. TMbr> Ultrasonic Distance Sensor (28015)br> * PING)))br>TMbr> The PING))) sensor detects objects by emitting a short ultrasonic burst and then "listening" for the echo. The sensor emits a short 40 kHz (ultrasonic) burst under the control of a host microcontroller (trigger pulse)br>. This burst travels through the air at about 1130 feet per second, hits an object, and bounces back to the sensor. The PING))) sensor sends an output br>pulse to the host that stops when the echo is detected, so the width of this pulse corresponds to the target distance.
Temperature affects the speed of sound and, as a result, the true accuracy of PING measurements. It's also affected by air currents that disrupt the path of the PING's beam))). You can definitely detect distance with a high level of accuracy (0. 5cm), but if you can't control for some of these factors, the results may be meaningless.
This isn't the barebones model with a trigger and echo pin that some people sell. This feature is built-in, but it necessitates the use of a second processor. This more expensive unit calculates the actual distance for you without the need for additional software.
Selected User Reviews For PING Ultrasonic Distance Sensor
The Parallax unit does a better job of filtering out noisy values and giving repeatable results when detecting relative distance over the advertised range.
This part performs much better than the ultrasonic sensor that came with an Arduino Uno kit I purchased.
This sensor performs admirably and has a range that other, less expensive sensors lack. I was able to maintain a consistent reading of the correct distance.
Excellent.
These are excellent pieces of work, but the cost is prohibitive. There are "just as good" options for a fraction of the price. br>br>In addition, these burn out; I've had at least half of them fail. br>br>I purchase a large number of ping sensors.
It performs admirably and accomplishes all of the goals set forth.
It did what it said it would.
This sensor was used with an Arduino, and Parallax has the code to sense the distance on their website, along with good documentation: [. ] br>br>[. ] br>br>[. ] br>br ]br>Only one I/O pin is used by this sensor. If you have a large number of sensors, this is a good option. If you don't require this feature, I recommend the following sensor, which only requires two I/O pins and is significantly less expensive:
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