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…Continue
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.
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…Continue
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…Continue
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…Continue
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…Continue
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.
Seeing all the problems we are having with noisy sonar data got me thinking
Where does the noise come from? Is it:
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"…Continue
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…Continue