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1500 questions
3
votes
2 answers
Create 2: Wheel interface board replacement
http://www.irobotweb.com/~/media/MainSite/PDFs/About/STEM/Create/Create_2_Wheel_Hack.pdf?la=en
Scroll to page 3.
I'm trying to interface the Roomba's preloaded navigation system with a pair of motors not attached to the roomba itself- however, to do…
Bakesril
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3
votes
1 answer
POM gears and metal fittings
I'm looking at this setup:
where the POM bevel gears are fitted with some kind of metal (bronze?) tube inside which fits over the shaft. What benefits does this method provide? Is it to allow the shaft to free-spin? The metal fitting wouldn't be…
John M.
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3
votes
5 answers
Moving a small plate back and forth
I'm hoping to move a plate (3MM x 45MM) back and forth using a DC motor. Here's my idea so far:
The motor drives a threaded shaft which is attached on one side of the plate. To help alignment, a rod is added to the other side of the plate (red). My…
Kar
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3
votes
1 answer
iRobot Create 2 to Vacuum?
I just got a Create 2 for Christmas, and while I'm planning to create with it (obviously), I'd like to use it around the house as a vacuum if at all possible. I've heard that you can buy parts for the Roomba and throw them on to this chassis, but I…
Ryan
- 31
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3
votes
2 answers
FastSlam 2.0 Implementation?
I have studied Claus Brenner's lectures on how to implement the FastSLAM 1.0 algorithm, where each particle maintains the robot pose, and maintains EKF's of the landmarks.
However, I'd like to implement FastSlam 2.0. Which I understand uses particle…
raaj
- 169
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3
votes
1 answer
How do I go about implementing a Kalman Filter for a pose estimation algorithm?
I am currently in the process of writing a pose estimation algorithm using image data. I receive images at 30 fps, and for every image, my program computes the x,y,z and roll, pitch, yaw of the camera with respect to a certain origin. This is by no…
HighVoltage
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3
votes
2 answers
Weird magnetometer values
I bought a 3-axis magnetometer (Similar to this one ) And plugged into an Arduino in order to read the heading value.
I mounted it on my robot and I drove with the robot for around 30 meters, turned 180 degrees and drove back to my starting…
Mehdi
- 681
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3
votes
3 answers
How to have a 'Auto Go Home' feature, like the DJI Phantom 3, on a project built quadcopter?
What should a quadcopter have, or have access to, in order to make this 'return home' feature work? Is GPS enough? What is the approach needed to make this happen?
I used a Arduino Mega 2560 with IMU to stable my quadcopter.
Sonu Sunil
- 33
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3
votes
2 answers
How to convert rotation matrix in to equivalent Quaternion using Eigen Library.
Eigen library (http://goo.gl/cV5LY), which is used extensively in ROS and PCL.
Thank you.
Neel
- 31
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3
votes
1 answer
inverse kinematics osciliations..
I am the moment having some issues with an Jacobian going towards a singularity (i think)as some of its values becomes close to zero, and my robot oscillates, and therefore thought that some form of optimization of the linear least square solution…
fouritn
- 31
- 1
3
votes
1 answer
How to perform odometry on an arduino for a differential wheeled robot?
I am using a differential wheel robot for my project. I need to know the current coordinates of the robot with respect to it's initial position taken as the origin. I m doing the computation on an Arduino UNO and the only sensory input that I get is…
daltonfury42
- 277
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3
votes
2 answers
sum_error in PID controller
I'm trying to implement a PID controller by myself and I've a question about the sum_error in I control. Here is a short code based on the PID theory.
void pid()
{
error = target - current;
pTerm = Kp * error;
sum_error = sum_error + error *…
Kevin Kuei
- 33
- 3
3
votes
2 answers
How do I simulate an assembly line?
I need to simulate a stream of vehicles, such as on an assembly line. Automatons are performing operations on the vehicles when they come within reach. The automatons do not keep track of the individual vehicles, they simply collect data.
We need…
Stephane Rolland
- 133
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3
votes
3 answers
Forward kinematic computing the transformation matrix
I am the moment trying to compute the transformation matrix for robot arm, that is made of 2 joints (serial robot arm), with which I am having some issues. L = 3, L1 = L2 = 2, and q = ($q_1$,$q_2$,$q_3$) = $(0 , \frac{-\Pi}{6},\frac{\Pi}{6})$
Based…
user11263
- 31
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3
votes
2 answers
Mechanical robustness/shock resistance LiPo batteries
How mechanically robust are LiPo batteries? How much force or acceleration can they maximally withstand before failure? What is their (mechanical) shock resistance?
For some electrical components used in robots, such as IMU's, it can be found in…
JJM Driessen
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