Let's Make Robots!

webcam

What "Brain" should I chose for my robot?

I am considering a more advanced  "brain" for my Service Droid robot. I know I could use the computer to do all the advanced computing and relay commands to the robot, but if possible, I would like to have an integrated system. So far, I see 3 variants:

1. Raspberry Pi + webcam (+ screen?)
2. Android phone with integrated front camera
3. Android tablet (4.3" screen) + OTG adapter + webcam

moving arm with webcam controllable from web.
Using a
A cheap robotic arm based on the OWI arm. 5 potentiometers were added to give it a position feedback,plus one motor controller to control the gripper and motor … Read more
Detects human face and navigates toward face, stopping at a certain distance away from the face
Using a
OpenCV on the Raspberry Pi detects human faces. I modified the script to move the robot left or right based on the coordinates of the detected face so that the face … Read more
Spies around the place controlled by sneaky interwebbers
Jon* Or Something (for people that seemingly have issues with diction of spells that will bring about their doom true names) or Read more
remote-control surveillance with a mobile webcam
Using a
When I first got myself a Raspberry Pi, I thought I was being very original trying to put together a remote-controlled surveillance bot, and over a few months I got … Read more
     Hi guys.      One month ago I ordered two $1 webcams from eBay for future projects with some vision functions. Last week I received those items and I … Read more
Web controllable mobile platform for webcam mounted on pan/tilt turret
Using a
This is my first robot project though I have been working with Microcontrollers and Embedded Linux for a little while. As of writing (3/1/13) this is still very … Read more
Drives around controlled by a web interface and streams video
Using a
Hey all, I finish building this about 2 weekends ago but I never got to actually post it so here it is: Raspberry Pi tracked bot or short RPI-TB-2 :) Built this one … Read more
When complete, Navigate via GPS, colision avoidance sensors, and machine vision
Using a
I have decided to move on to other things, GPS had some serious flaws, one of which would require me to drill out all the rivets, remove his shell, and replace two … Read more

How to Build a Ping Pong Robot (YouTube)

Hey,

The ModuPong YouTube channel is about a modular robotics system that tracks a ping pong ball in real-time. In addition, we cover in this channel how the system predicts and responds in less than 130ms.

Please tell me if you have any ideas on how we could make our system better. Cheaper and faster would be great!

I started an new robot project which will be a long time project. The base is the 4WD chassies with 4 gear motors. The first stage is to attach the Dagu IR compound … Read more

Taking Video From a Webcam in OpenCV

So I have been trying to get OpenCV to work. I displayed some pictures in windows and simple stuff like that. Then, following along in my book, I attempted to write a program which would take video from a webcam and place it in a video. Here is my code:

 

#include "stdafx.h"

#include "cv.h"

#include "highgui.h"

 

 

main( int argc, char** argv ){

cvNamedWindow( "Webcam", CV_WINDOW_AUTOSIZE );

 

CvCapture* capture;

RC lawnmower for cut the grass from my android phone !
Using a
Hi everybody, First i present myself, so i am a 19 years old boy from france, i am actually studing at the university in tours ! I like technologics hackings and i … Read more

Wireless webcam?

Hi,

Does anyone know of a cheap wireless webcam? I found one from maplin, but the reviews aren't brilliant. I wouldn't want to spend any more than £20 ideally!

Toby

Wide FOV webcam / low-cost camera

Hi there,

I am looking for a webcam (or low-cost camera) with good lens (low-distortion) and wide filed of view (at least 75 degrees). A resolution of 640 x 480 is enough, although a bit higher would be better. Any suggestion?

Devices not used to their full potential

It seems to me some very cheap devices are not used to their full potential in robotics. Currently I am focused on optical mice. There are tutorials on the web and even an easy to use PS2 library for Arduino but I never see a robot on LMR using them.

I am currently experimenting with a cheap PS2 optical mouse as a high resolution quadrature encoder. With a resolution of 800 DPI, I can get an accuracy of 3600 counts per revolution (1/10th of a degree) by having the sensor mounted near the outer edge of a disc about 40mm in diameter.

It goes up-down ,right left and it has a camera on it .
Hello everyone this one is a pal/tilt mechanism for my webcam . It is not finished yet ,this is just the mechanism ,but I want to add several features on this … Read more
Hello LMR! My name is Jordan, I'm in grade 12 in Canada, and this is my robot Fred. I won't say he's my first robot. I've built my share of line followers and … Read more

Suggestions for TheBox

Hi,

Lately, I've been creating computer vision applications for my robot TheBox

I've created a color tracker, a motion detector and a wall avoider application.

But now I ran out of ideas. 

 

So, can you give me some cool ideas to make other applications? :)

Well, this is probably the simplest robot I've ever made. It is just this event's robot mounted in a old IBM box. I've built it just to serve as a testing platform … Read more

Polymorphing a Webcam

Today I decided that my Logitech QuickCam Communicate STX webcam needs upgrades. I got the camera, some polymorph, plumber's tape, hot glue and couple of servos. Let's see what we get when we put those together.

Ooops! I forgot to take a picture of the original camera. If you have never seen a Logitech QuickCam Communicate STX webcam there's some pictures of it at least here. There's might be some pics at Logitech site too but since this is a discontinued model they could be hard to find.

it moves a webcam up and down and right and left.
Well i made this one for a friend . He has a laptop with a broken display but the embedded webcam works fine so he asked me to build a pan-tilt mechanism for this … Read more
Bender is a medium sized robot based on the Crustcrawler Nomad HD platform. It uses the Parallax Motor Kit with Position Controllers, a pair of Parallax HB-25 Motor … Read more
This spring I’m trying to build a ROV for me and the kids to play with in the summer. I’m trying to make it as small as possible so it’s easy to carry and … Read more

Absolute Simplest Blob Detection on PC with WebCam

Hi There,

We need to know the absolute simplest way to do blob tracking using a windows pc. 

We are building a robot that seeks and collects tennis balls. Everything is working except for the ball recognition. All the PC software has to do is get the x,y coordinates of a yellow blob, and then send the appropriate signal to the COM port (we have 4 values that are sent to the comport to be interpreted by a pic micro and translated into "move forward" "move backward" "turn left" "turn right")

Blob Tracking on a Windows Based System

I was just wondering if anyone had experience with basic blob tracking on a windows system.

Robotics Studio/Visual programming language has a blob tracker service, but I haven't found any info on how to implement it..

Does anyone have any suggestions?

Drives until obstacle detected, plus colour object tracking
Using a
I've spend too many years thinking about building my own robot and feel like I've found a group of like-minded folk with this site. :-)  I'd like to share my … Read more
This is the fusion of my old Qwerkbot project and a 4WD base, with omniwheels replacing the originals. I've also attached one of Oddbot's compound IR sensors for … Read more