All Blog Posts Tagged 'sonar' (14)

Basic Sonar-based Collision Avoidance for a Quadcopter

This last academic year, as a part of our Senior Design Project for an undergrad program in Mechanical/Aerospace Engineering at the University of Miami, my team (Mark Agate and Stephen Markus) and I developed a basic collision avoidance system using sonar sensors.

We first constructed a relatively rigorous 6 degree of freedom simulation in Matlab's…

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Added by Sarmad Chaudhry on June 25, 2014 at 12:00pm — 15 Comments

obstacle avoidance test

This a video of the "bucket avoidance test".I installed 2 mb-1040 maxbotix sonar sensors and a actobotics pan and tilt I modified hitec digital servos for 360 degree rotation in X Y axis.

http://youtu.be/gjV4OMY_EME

Added by Larry A Amati on June 7, 2014 at 10:30am — 2 Comments

The Ardupilot controlled transducer boat part 1

In this blog I would like to share my experiences with my new project, an autonomous transducer boat, controlled by an Ardupilot. 

After a long time of reading blogs, searching parts online and planning, I started my project. My plans are to build an Ardupilot controlled boat, which measures and logs the…

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Added by Burkhard rieck on May 21, 2013 at 12:00pm — 4 Comments

Easy LED Sonar Heater

They say the sonar modules will not work under 50 degrees Fahrenheit (10 degrees Celsius). I have tried using the  4, 10 ohm resistors but this seems to work much better, and is easier to install  for me This is how I keep my sonar module warm in the winter, all you need is a small piece of the strip of red LED's, this is where I got mine…

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Added by Xerravon on February 21, 2013 at 2:30pm — 13 Comments


Moderator
New High Resolution Sonar Line from MaxBotix: HRLV

Our friends at MaxBotix have updated their offering of ultrasound sonar sensors by adding the new High Resolution LV line. The defining characteristic of this new line of sonars is the 1mm resolution. Yes. 1mm. Well, more correctly, "the HRLV-MaxSonar-EZ Sensors offer calibrated 1 mm accuracy of 0.1% at 1 meter," so at greater distances, the ranging might be off by a…

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Added by Michael Pursifull on June 14, 2012 at 9:30pm — 18 Comments

Hexa flying

 

Thank you Jason and everyone else in the ardu team for the great job done in this project!!

I've finally got Hexa to work, the setup is as follows (v2.0.49):Jdrone frame Hexa, Jdrone engine 880, jdrone 30 amp esc, 10x3, 8 prop, 2x4s lipo main batteri(6000 to 10,000 ma), Spektrum DX8 with telemetri, 2xcastlec becs connected to two blocking diodes one of the becs have his own 2s lipo to keeping the voltage stable if the main battery is overloaded. I have worked extensively with…

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Added by Arnt-Inge Hansen on November 26, 2011 at 5:00pm — 6 Comments

Creating an I2C sonar for Arducopter

I've created an I2C digital signal sonar module to avoid the noise problems I have been having with the current analog signal sonar module.

Why?

Seeing all the problems we are having with noisy sonar data got me thinking

Where does the noise come from? Is it:

  • RF noise from the ESCs affecting the sonar module directly…
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Added by agmatthews on July 28, 2011 at 11:30pm — 42 Comments

Yet Another Build Log (YABL) - Part 4 - Sonarrific





I've originally meant to write about propeller mounting, tracking, tightening and about my first flight (which ended up with a stripped spinner nut), but since my sonar arrived and, since installation wasn't exactly 100% straightforward, that's today's subject. So, here it is, in the photo above - the Maxbotix LV-EZ4 sonar, freshly taken out of it's zip-lock baggy, along with a 5 pin header. Which is not included. That's from my own header stash. NOBODY TOUCHES MY… Continue

Added by Ante Vukorepa on April 25, 2011 at 1:32pm — 19 Comments

Using the new GoPro firmware for FPV flying on an Arducopter

 

Recently, GoPro released new firmware for the GoPro HD camera (http://gopro.com/support/hd-hero-firmware-update/). There are improvements and features in various areas, but the one that interested me was the "Live Feed Out" feature, which is the ability to feed VGA video out through the "VGA Out"…

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Added by Robert Beatty on March 19, 2011 at 1:30pm — 24 Comments


Developer
Which Maxbotix sonar should be the standard?

    About two months ago we added altitude hold using the Maxbotix sonar to the ArduCopter (you can find instructions re how to set it up on the wiki).  At the moment on the we recommend the LV-EZ4 and…

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Added by Randy on February 27, 2011 at 4:09am — 24 Comments

PC based autonomous boat

Overview:

This project is in the very early stage of development. I've got a couple ideas that I want to explore and need a suitable platform to work with. The following are some of the components I hope to use to assemble this platform.



Objective:

The objective of this project is to design a very small boat ( roughly 1 meter LOA ) that will be capable of autonomously traveling a preset survey grid… Continue

Added by bigkahuna on July 7, 2010 at 3:38am — 25 Comments


Developer
ArduIMU quadcopter part III

Hi all, I have a new drone in the family...

This tiny drone is able to do completely automatic flights, it can perform altitude hold (based on sonar sensor) and obstacle avoiding based on IR distance sensors (you could see the "black stange eyes" on the photo). It´s your…

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Added by Jose Julio on May 12, 2010 at 12:00pm — 117 Comments

Ardupilot goes into the water Part 1

Hello everybody,


this is my first blogpost on this site.


In the following i will describe my experience, my ups and downs while
developing an ArduPilot based depth surveying system for lakes.

I know, this site is primarily for flying platforms. Please leave a comment, if you think that this is not the right place. Maybye, some of my findings are also interesting for flying platforms.…





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Added by Harald Molle on March 30, 2010 at 12:00pm — 17 Comments

Sonar guided R/C helicopter

Interesting youtube video of sonar guided r/c helicopter with abrupt finish.

Added by Mike on May 14, 2009 at 2:59pm — 1 Comment

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