0
votes
0answers
3 views

Firmware upgrade for iRobot Create 2

Is there a firmware upgrade for available for the Create 2? I had some issues in March when using these for assigning a University of Tennessee programming project. We are getting ready to use them ...
0
votes
1answer
14 views

What erector sets will function with normal servo motors?

I need a basic erector set that the parts will fit with servo motors and dc motors. Preferably below $100. I've looked at Minds-i basic set and it looks good except I don't know if it will function ...
0
votes
0answers
4 views

What PID values should i keep

I have built quadcopter but the problem is of balancing. It doesnt goes up. I am using PID techniqe for balancing. But i am not finding the suitable values for PID tuning. I am using mpu6050 as a ...
0
votes
1answer
12 views

Orthogonal projection of laserscanner data

I recently discovered this ROS-package: http://wiki.ros.org/laser_ortho_projector . Which is basically exactly what I need. However I am not using ROS, so I need to do what is been done in this ...
0
votes
1answer
14 views

Total Hand calculations procedure & formulaes of Mega-Quadcopter

I am a student of BE taking Mega-Quadcopter as my final year project.Can u please help me with the total hand calculations of the mega-copter i.e its procedure and formulaes? . I wanted to know how to ...
0
votes
0answers
10 views

How to generate edges for pose graph SLAM from known positions and loops?

I'd like to generate a list of edges (constraints) for pose graph SLAM, given a sequence of coordinates $P=((x_1,y_1), ..., (x_i,y_i) ,..., (x_n,y_n))$ a hypothetical robot has visited in order ...
1
vote
1answer
34 views

Tuning PD for line follower

I am trying to make line following robot. I am using atmega328p mcu, pololu 10:1 motors, pololu qtr6-rc sensor, 2s li-po. Here is my code: ...
-1
votes
0answers
14 views

How can I start a arduino based robotics club in school?

I want to start a arduino based robotics club in my high school. How can i start one? What should be the curriculum. What are all the requirements of parts? Should I charge the students to join the ...
0
votes
0answers
29 views

How can i make a platform elevate?

If I have a flat base and I want a part of the base to slide open and a platform with a solar panel to come up from below the base. How can I do that? What are all the parts I will be needing? Can I ...
-1
votes
0answers
32 views

Book on mechanisms

I wanted to know if there is any sort of archive of mechanisms that contains a brief description of mechanisms like there type of motion and forces involved. Not lengthy derivations and other stuff.
1
vote
0answers
17 views

Hand Eye Calibration Solver

I have a rig for which I have a pretty good estimate of the static transformation between the camera and a joint based off of the CAD. It has some errors though and I was hoping to fix it by doing a ...
-2
votes
0answers
21 views

want to have a Degree in robotics & ai

I am from Bangladesh. I am interested in robotics & ai. But our country is not that much developed for robotics & ai. So I want to know how can I apply for a degree in abroad. I also want to ...
1
vote
1answer
27 views

Axis of rotation via IMU

Using an IMU (gyro, accelerometer and magnetometer), as found in most smartphones, can I detect the differences between tilting the device, say forward, along different (parallel) axis positions? To ...
0
votes
0answers
16 views

Kinect and a IR-light

I wonder if anybody has tried the following: Use a Kinect v2 to look at a room. Place a IR-Projector in the room that sends out a pulsed signal (e.g., to send a message) and uses IR-Light in the ...
2
votes
2answers
20 views

Why the name “combinatorial”?

Why are 'cell decomposition' methods in motion planning given the name, "combinatorial" motion planning?
1
vote
0answers
22 views

Compatibilty of my setup?

I'm building my first quadcopter, and those are the components I intend to buy : 1-Motor :EMAX BL2212 1400 KV Brushless Outrunner Motor around 0.9 kg thrust: ...
3
votes
1answer
41 views

Wall following using hokuyo lidar and sharp IR sensors

I have a mobile robot and I would like it to follow the walls of a room. I have: A map of the room. Wheel encoders for the odometry. A Kalman filter for fusing data from wheel encoders and IMU. A ...
0
votes
1answer
35 views

recommendation for really high precision attitude measurement sensors

I am new in this field, I am looking for some high precision gyroscopes and accelerometers for attitude measurements.The precision requirement is around 0.2~0.5 deg/s dynamic. I have done some ...
-1
votes
0answers
43 views

Strategy to simulate a mobile robot in Matlab

I'm looking to replicate the results obtained in a paper for an MPC-based algorithm to make a mobile robot to avoid moving obstacles. The paper has already the model and the controller, and the ...
1
vote
1answer
37 views

Multiple EKFs or one big

Let's say I would like to use an EKF to track the position of a moving robot. The EKF would not only estimate the position itself but also variables affecting the position estimate, for example IMU ...
-2
votes
0answers
31 views

How to order custom parts? [closed]

I need some custom parts to built for a current robotics project that I am working on. How do you order or send in or create custom parts for robotics projects. Thanks.
-1
votes
0answers
35 views

propeller/motor properties/configuration and Ncopter flight charactristics? [closed]

What is the effect of this different properties/configuration: Number of motors (n, 4, 6, 8, N). Motor: KV, Max voltage, max current, max thrust, in-runner, out-runner, etc.. Propeller: size, ...
0
votes
1answer
19 views

Can i charge a lipo nano tech battery over imax b3 charger

Can i charge a lipo nano tech battery over imax b3 charger. 2650mah 35/70c 3s is the battery
2
votes
1answer
99 views

Robot path planning

My goal is to move robot in certain points as shown in the figure. It's initial position is (x0,y0) and move along other coordinates. I am able to track robot position using a camera which is ...
2
votes
2answers
70 views

Positioning Sensor

I would like to locate the position of a stationary autonomous robot in x-y-z axis relative to a fixed starting point. Could someone suggest sensors that would be suitable for this application? I am ...
1
vote
1answer
47 views

Robot localization without any sensors

Is it possible to localize a robot without any sensors, odometer and servo motors? Assume robot has dc motors and no obstacles.
1
vote
1answer
34 views

Inverse kinematics solution for 6DOF serial arm

My 6 joint robot arm structure doesn't meet the requirements for a closed form solution (no 3 consecutive axes intersecting at a point or 3 parallel axes...). What would be best method to adopt to ...
1
vote
0answers
38 views

Telemetry with APM 2.6 and XBee

The transmission of telemetry data between the ground base station and APM 2.x (Arducopter), using XBee, is not well documented. The only documentation is Telemetry-XBee, but it does not specify what ...
3
votes
1answer
39 views

Arduino mega shield v2.0 compatibility with arduino due

Like the title says.. Will it work? I know about the due 3.3 volt limitations. I want to build a hexapod with 18 servo's. The shield I am looking at: ...
1
vote
1answer
97 views

Non linear control system?

I have a dual (sequential) loop control system controlling the angle of a rotational joint on a robot using an absolute encoder. I have tuned the inner control loop (for the motor) and am now working ...
2
votes
1answer
21 views

Powering a Project Tango Tablet with iRobot Create 2

Project Tango Development Kits come with a mini-dock (see picture below). I am controlling the iRobot Create 2 by the mounted Tablet using the USB cable provided plugged into the mini-dock. (see ...
-1
votes
0answers
27 views

Best place/way to get started? [closed]

My kids and I have been into robotics for a very long time, and we've finally decided to leave the schools behind and start working from home with our limited knowledge. Both kids were in FIRST LEGO ...
1
vote
1answer
89 views

How can I recognize animals in a video stream or static images with openCV or other library/software?

I'm a software developer not experienced in AI or machine learning, but I'm now interested in developing this kind of software. I want to develop software that recognizes some specific objects, ...
2
votes
2answers
41 views

How can I tell if a servo motor is capable of being controlled degree by degree?

I want to create a rotating control mechanism that can turn a surface to face any direction in a sphere. My dad (an electrical engineer) said I can probably do it by connecting two servo motors ...
0
votes
0answers
17 views

Create large 3d map using raspberry and kinect

I would like to create a large open space map of an office floor using a kinect and a raspberry pi. The first thought i had was to use kinect native fusion sdk but i think Windows 10 IoT does not ...
2
votes
4answers
68 views

How to rotate a dc motor at a fixed rpm

I am using 8051 microcontroller and a dc motor.What to do if i have to rotate the motor at any fixed rpm. Let's say 120rpm. And if it is possible by generating pwm,how to do the calculations for the ...
3
votes
1answer
32 views

IRobot Create 2: Powering Up after Sleep

I've notice the IRobot Create 2 does not respond to the app's commands when it has been sleeping. If I press the Clean button and re-run the app then the robot is responsive to the commands. My ...
3
votes
1answer
41 views

Beginner Soldering question

So, I need to know a couple of things about soldering. My primary workspace, robotics and otherwise is a desk with a computer and only a little bit of free space (4ft. by 6 in.). I am wondering if it ...
2
votes
1answer
36 views

Forward kinematics of constrained double pendulum

I was wondering whether maybe you could help me with this problem. I have a double pendulum. I have set the origin of cartesian coordinates to be the "head" of the first arm, which is fixed. The end ...
5
votes
1answer
81 views

How to numerically calculate the Jacobian?

I'm trying to calculate the Jacobian for days now. But first some details. Within my Master's Thesis I have to numerically calculate the Jacobian for a tendon-driven continuum Robot. I have all ...
0
votes
0answers
24 views

Using Blob detection in V-Rep

I was trying to reproduce this youtube tutorial in V-rep and I came across some problems concerning blob detection. There are some complaints on this matter under the video. I don't believe that blob ...
2
votes
2answers
46 views

How can I get the values of a IMU from the serial message received in Simulink via UART?

I try to read IMU sensor data from an Arduino mega 2560 UART with serial receive block of Arduino support package for simulink. The IMU can send binary packets and also nmea packets and I can ...
3
votes
1answer
29 views

How to determine x-axis if the two z-axis are intersecting in Denavit Hartenberg representation

Suppose I have a 3 link(1 dimensional) chain in which all the joints are revolutes, the axis of first revolute joint is along Z-axis(global) and axis of second joint is along X-axis(global). The first ...
3
votes
2answers
44 views

How do I dispense a greasy fluid?

I'm a agricultural engineering student and complete newbie trying to build a simple mechanism attached to a drone that dispenses a grease-type fluid. However, since I'm not familiar with the field, ...
4
votes
1answer
53 views

Forward kinematics: Why ω should remain same?

Can anyone please explain me these lines found on page 5 of Kinematics Equations for Differential Drive and Articulated Steering by Thomas Hellström? Note that plugging in $r$ and $v$ for both ...
-1
votes
0answers
35 views

Roadmap for Probabilistic Robotics [closed]

In order to enter the area in SLAM/Robot Navigation, is there a recommended roadmap for so-called Probabilistic Robotics, particularly after reading the canonical textbook by Thrun, Burgard and Fox ?
0
votes
0answers
35 views

Original paper of Kalman filter

Recently we've encountered Kalman filter algorithm for state estimation in a course of Probabilistic Robotics. After taking several days to try to read Kalman's original paper published in 1960, "A ...
1
vote
1answer
29 views

What commands make the irobot create 2 go left and right not just forwards and backwards?

I am new to the create 2 and I downloaded real term to program, opened an interface to the robot and send numbers with it to the robot. I can only get the drive command to work. I only know how to ...
1
vote
1answer
23 views

Simulation environment for conducting visual servoing experiment

I want to conduct the following experiment: I want to set up a scene with a kuka lwr4+ arm, a 3D model of an object and a camera overlooking them. I want to find the pose of the object using some pose ...
3
votes
1answer
77 views

Simple Sensor Fusion for pose estimation

I am currently working on a balancing robot project, which features fairly low-cost sensors such as an 9-Dof IMU with the measurement states $\textbf{x}_\text{IMU} = \left[a_x, a_y, a_z, g_x, g_y, ...

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