Gender
Male
About
Location
Pittsburgh, PA
About Me:
I am graduate student at the Carnegie Mellon Robotics Institute
Please tell us a bit about your UAV interest
I am working to build outdoor SLAM using the Arducopter and Hokuyo laser
Hometown:
Pittsburgh, PA
Activity Feed
Hey All,I have been playing around with my Arducopter for a month or two now and it has been performing well. However, since last week it has started yawing like crazy. It tilts while taking off and then starts spinning rapidly in the air. I have…
Hello,I have a MB1200 sonar from the DIYDrones store. While working with it recently I observed some very weird behavior. I was getting pretty bad altitude hold in Loiter and AUTO modes. When I would analyse the sonar_alt logs, it would have a few…
Hello,I have a very basic question regarding AUTO mode. If the quad is in the middle of navigating to WPs in AUTO mode, and I switch out for a minute or two to some other mode (say STABILIZE). When I will switch it back to AUTO, would it continue…
"Could I know why the optflow.x_cm value is not integrated at any place in the code to keep track of the translation of the quadrotor.It gets refreshed every time optical flow is updated? I see that in Attitude.pde, tot_x_cm accumulates the x_cm but…"
"Hello Daniel, if Google translated French correctly for me, I used only one PC to run it. I also follow the same boot order as you mentioned.."
Hi Everyone,I need a little help in identifying if my sonar sensor is working correctly. I recently purchased the MB1200 from the DIYDrones store and flew with it. However I did not get good Alt Hold in Loiter or Altitude Hold mode. I must confess…
"Hey, I am trying to run this simulation using XPlane by following the steps on the wiki. I am using a demo version of XPlane 9.0. However when I load the situation, my screen starts vibrating like crazy and the quad does not follow the script or the…"
"Thanks for the tip Randy. My surface quality values were really low initially. With good sunlight in the room I can see the values changing with movement.
So my ultimate goal is to use this sensor to get odometry values(translation) of the quadrotor…"
So my ultimate goal is to use this sensor to get odometry values(translation) of the quadrotor…"
"Hi Randy, I wanted to inquire on the current status of the optical flow sensor integration with GPS waypoints?
Also while running the Opt Flow test script, what is the x,y translation range I would observe? As of now I do not see much translation…"
Also while running the Opt Flow test script, what is the x,y translation range I would observe? As of now I do not see much translation…"
Hello Community,I am a graduate student at CMU and out team is working on creating efficient navigation algorithms using point clouds. Unfortunately we are more inclined to software and controllers and have small electronics experience. Therefore I…
"Thanks for this release. I have been flying with it the last few days and it seems great. I plan to integrate (Hardware) my optical flow sensor on the arducopter this weekend. I see that there is an option to enable 'optflow'. Could I know what I…"
"Hi All,
So I tried loiter again with sonar on this time. I got good results for the first 30 seconds or so. And then I could see it rise up slowly. It did not shoot up like it did the last time around, but it rose up constantly and pretty high…"
So I tried loiter again with sonar on this time. I got good results for the first 30 seconds or so. And then I could see it rise up slowly. It did not shoot up like it did the last time around, but it rose up constantly and pretty high…"
"That sounds exciting Randy! Thanks for creating this cool sensor. Just a quick point though. Will I (eventually) be able to use it with GPS for waypoint navigation? Or may be just use the OFS to go to waypoints(I mean indoors, like go 5m straight…"
"Hey, Could anyone tell me what I could be doing wrong with Loiter mode? I want to try to put it again, this time after mounting a sonar (maybe). Though I am afraid it will shoot up again.. Any solution anyone??
BTW: I have definitely have GPS lock"
BTW: I have definitely have GPS lock"
"Hi Randy,
My OFS is on its way, and am very excited about it. Though I wanted to see what the general feedback has been about the sensor. Also what and what not to expect from it? In terms of position hold accuracy, GPS etc?
Thanks!"
My OFS is on its way, and am very excited about it. Though I wanted to see what the general feedback has been about the sensor. Also what and what not to expect from it? In terms of position hold accuracy, GPS etc?
Thanks!"
Hello all,After some basic testing and flying out doors manually and with Alt_Hold, I put my arducopter in Loiter mode. I ensured I had proper GPS lock before hand. A couple of seconds of loitering later, the copter just shot up really high. It…
