Robotics Stack Exchange
Robotics Stack Exchange

Most Popular

more tags
1500 questions
4
votes
2 answers

iRobot Create 2 stuck in Clean mode?

I'm using the Delphi example to command my Create 2, I just adapted the demo code to Unicode (DelphiXE). I use the original iRobot USB to serial cable. My Create 2 seemed to be responding fine to all the commands send via serial yesterday and…
xavier22
  • 91
  • 3
4
votes
0 answers

How does one implement a third order complementary filter for estimating altitude using data from an accelerometer and a barometer?

I am working with the CJMCU build of cleanflight on a small drone. As of now, the algorithm for altitude hold uses a first order complementary filter to combine data from the barometer and the accelerometer (after integrating the accelerations…
Siddharth Hari Nair
  • 41
  • 2
4
votes
2 answers

Software to control an Arduino setup with a timing belt and stepper motors

I would like to know what software is available to control a timing belt with stepper motors for arduino board.Much like how its done in 3d printing. But in this case i wont be making a 3d printer.Just one simple setup.
sohaib shaikh
  • 63
  • 1
  • 5
4
votes
1 answer

Robotic manipulator Jacobian by product of exponentials

I've taken a class and started a thesis on robotics and my reference for calculating the Jacobian by product of exponentials seems incorrect, see: http://www.cds.caltech.edu/~murray/books/MLS/pdf/mls94-complete.pdf Specifically the resulting…
Drew
  • 95
  • 8
4
votes
1 answer

How to interpret the result of image rectification?

I've been trying to understand image rectification. Most of the time the result of image rectification is illustrated by the original image (i.e the image before rectification) and the rectified image, like this: The original image: The rectified…
S.E.K.
  • 191
  • 7
4
votes
3 answers

How can this mobile robot rotate so perfectly?

Please have a look at this youtube video. When this mobile robot operates, the rack (which is said to weight up to 450 kg) can have its Center Of Mass (COM) distributed at any location. For example, this COM can be located 5 or 10 cm off from the…
user3286500
  • 41
  • 2
4
votes
3 answers

imu position without GPS or camera

I have a IMU that has 3-axis accelerator, 3-axis magnetometer, 3-axis gyroscope and row, yaw, pitch value. I want to get the location of the IMU coordinate(the beginning point is (0,0,0)) but I know just using double integration will has dead…
kint
  • 41
  • 1
  • 2
4
votes
3 answers

Best power solution for my robot

I've built quadruped robot which is using 12 servos (TowerPro SG90 Servo) and Raspberry Pi (model B 1). Right now I'm "feeding" it with 5V 2.5A charger. How can I make it un-tethered? What should I look out for when selecting batteries? Also, I…
sssemil
  • 143
  • 3
4
votes
1 answer

Attaching a M5 screw shaft to a cog wheel

Does anyone know of a good (low profile) way to attach the threaded (chamfered) end of a M5 screw shaft to a 30MM (30T 1M) plastic cog wheel? Would it be a good idea to widen the shaft hole and just let the threads grip the hole? EDIT The torque…
WKleinberg
  • 73
  • 4
4
votes
3 answers

What exactly are PPM controlled ESCs? Are most ESCs available to build quadcopters PPM Controlled?

First, I don't see any manufacturer or online store telling whether an ESC is PPM controlled or not. Second, I have also been Googling and asking comments in all about ESCs youtube videos for long, but I couldn't find anything useful. Why do I need…
Saravanabalagi Ramachandran
  • 185
  • 3
  • 10
4
votes
3 answers

Is RobotBASIC outdated?

I found this website http://robotbasic.org/ and it talks about a language used for programming things related to robotics, and I want to make sure whether or not it's worth investing any time or energy into compared to other languages before I just…
KrimsonKaiser
  • 41
  • 1
4
votes
3 answers

Discontinuity in device orientation

Why is there a discontinuity in the quaternion representation of my device orientation? I'm using a SENtral+PNI RM3100+ST LSM330 to track orientation. I performed the following test: Place the device in the center of a horizontal rotating plate…
tba
  • 143
  • 3
4
votes
1 answer

In order to integrate MCL and Occupancy Grid to implement Grid-based FastSLAM, do you have to record all data?

It's unclear as to how one goes about integrating Occupancy Grid mapping and Monte Carlo localization to implement SLAM. Assuming Mapping is one process, Localization is another process, and some motion generating process called Exploration exist.…
Iancovici
  • 163
  • 6
4
votes
2 answers

Lifting robotic leg with only one servo

Note before I start: I have not actually put anything together yet, i'm still just planning, so any changes that require a shape change or anything like that are accepted. I'm working on making a walking robot with my arduino and 3d printing all the…
ruckus
  • 163
  • 8
4
votes
2 answers

Is there a way to turn the sound off of a Roomba?

I am working with an iRobot Create 2 and I work with others around me. Whenever I turn the robot on, send it an OI reset command, etc., it makes its various beeps and noises. I would like to not have this happen since I find it a little annoying and…
Eric
  • 65
  • 1
  • 1
  • 6
1 2 3
…
99 100