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Raspberry pi

Obstacle avoidance and streaming video (someday soon)
http://pinkypibot.blogspot.com/ Here is a link to my blog that has a lot of project details. Current code available as txt files Arduino and Python.  UPDATE … Read more

Q[Resolved]:Raspberry PI,Opencv can not open camera

opencv2.4.6 BUG V4L doesn't work,just use version

when i run the samples:
 //capture = cvCreateCameraCapture(CV_CAP_ANY);//cvCaptureFromCAM(0);//-1//CV_CAP_ANY
 none of them work.
 ERROR: capture is NULL.

thus,i was in trouble.i've bought a new camera(Bus 002 Device 004: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 Webcam),which was even worse,not support v4l.maybe i should buy one more on the support list.

This project is my first foray into robotics and electronics for that matter. My goal is to end up with a platform for AI experiementation. I plan to add GPS and a … Read more
Walks and turns, kicks a ball, and sits down !
Using a
Based on a 6 DOF BRAT clone kit from ebay ($50!) Uses 6 MG995 45g servos: 2 Ankle Servos, 2 Knee Servos, 2 Hip Servos  4xAA Nimh to drive servos 2xAA to drive … Read more

How do I connect a 5V sensor to a 3.3V input


I am using a IR sensor (photo transistor) that was ripped out of a ball mouse and I am running it at 5V, but I need to connect it to a Raspberry Pi which runs at 3.3V (at least the IO-pins are). 

I can place a 3.3V regulator before the sensor and adjust the pull down resistors, or use a zener diode to limit the output, but I was wondering wheter my currecnt setup will be safe to use.

Sorry for the poor quality drawing by the way.

After a long hiatus, I decided to resume working on this project. I bought a USB power supply, that easily powers the Pi with the camera module and wifi dongle … Read more
Speach Synthesis, Speach recognition, face recognition and face tracking, autonomous navigation, remote controle
Using a
Hi Everybody! Few times ago I bought a Robot Vacuum cleaner (Neato) for my house. It wake up my old passion for robots which have been in sleep for years, after an … Read more
moves objects from zones to other zones while mapping its environment with ultrasound
Using a
BEN: Bright Enough to Navigate This robot will be a continuation and an improvement on my first robot, EDWARD … Read more
My wireless rover, based on a Traxxas Stampede XL-5 and powered by a Raspberry pi, controlled over wifi. An Adafruit 12bit, 16 channel PWM servo driver is used to … Read more

Raspberry Pi vs BeagleBone Black

Hello everyone!!
Posting a forum topic after a long time. This topic is to get an unbiased opinion on what to choose between a BeagleBone Black and a Raspberry Pi. As I was away, I don't know if such a forum has been made before and would like you to post links to it if it has been made.
Forum Question-

Three 08M2s and a Pi?

Hello! I'm a complete Picaxe n00b, but I have read quite a bit online, so hopefully my ideas here are not entirely inane.

I have been playing around with a Raspberry Pi as the brain for a small two-wheeled differential drive robot. It's very simple, but it more or less works.

GPS Waypoint navigation, computer development platform
Using a
The ArcRover is my latest platform for developing GPS navigation systems as well as other computer related stuff. The robot uses a Raspberry Pi as the main … 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
Let's you explore the corner of my living room
Using a
This is a very simple robot based on a Raspberry Pi with a L293D motor controlles connected to two motors and wheels. Running on the Pi I have a python script which … Read more
Convert home to an immobile robot. Collecting sensors reading and in the future will take actions
After having read so many interesting posts on the LMR I wanted to make also my contribution. The present project is not a mobile robot but rather an immobile one, … Read more

Raspberry pi GPIO

Simple question (hopefully)

As a simple starter project, I'm considering using a raspberry pi as a looper, probably based around This Software. As it uses a keyboard or midi input to trigger loop recoding, I'm wondering how hard it is to map the gpio pins on the RasPi as keyboard/midi inputs.

As an additional question, how hard would it be to send some of the data from this program to a cheap character LCD?

Thanks in advance.

RasPi and RC


This is a bit of a repetition of a question I added to this post, but I tought I'd repost as I don't think anyone will see the other.

I've managed to get my hands on a raspberry pi, and I was wondering; Is it worth using for a transmitter, or would I be better off using a standard microcontroller? Could it handle working in real-time? Is it possible to output PPM on one of the GPIO pins, or would I be better off using a secondary microcontroller?

Short description This is cr3cX, a robot I am building for my son to play with, and with the hope to teach him some programming. Current version is cr3c4. Read more
Standalone system based on Raspberry Pi. Now with a laser cut frame and video streaming working. Status as of 2012.09.14 I could not make the old webcam (Microsoft … Read more

Raspberry Pi Robot

Hopefully I didn't get your guys' hopes up, but I don't actually have a Raspberry Pi yet. However, it's on its way to my door (although I'm currently on vacation, so I'll have to wait a week). Now I'm filling up my time thinking of ways to use it. Most likely, I plan to make a robot from it. Since the Raspberry Pi has a lot more computational oomph than the Arduino, I want to make something more advanced than what I've done before. It'll probably be a mobile computer, with a keyboard, mouse, small screen, and perhaps some sort of manipulator to interact with the world.

Raspberry pi

Just wondering... I haven't seen anyone say so yet but has anyone got their hands on a raspberry pi? I was just invited to order one from element 14 but they said delivery would be in August sometime. So it's on order. How many here are interested in the raspberry pi. I've seen a couple people comment about them.