Let's Make Robots!

PocketBot2

Have you guys seen this?
What an amazing design, and something to aim for! :-D
http://vimeo.com/32406001

 

Music Playing Quad Rotor Robots

http://www.upenn.edu/spotlights/penn-quadrotors-ted

Music playing Quad Rotor Robots

FYI - I had to choose use old Embeded code on YouTube page to get the code to be accpeted. 

Juice Box Robot Plan, Needs review

***UPDATE MARCH 11: After reading the comments here I have made a couple of changes to my plans. I have replaced the PICAXE 18 with the PICAXE 28 and appropriate board. I have switched to 3 AAA cells as a power source and I have changed to servos to power the "arms". When I wrote the original post used the word "arms" as a placeholder, but while I always intended to have actuation it was never actually going to be a set of arms.

Hexapod controlled by arduino+devantechSD21

Hello there,

I am working on a hexapod robot and i am trynig to controll it by using aruino + SD21 servo controller.When i am  test each servo separately ,are acting like i want but when i am connecting all of them its like most servos are not moving at all.

 

This is my code:

#include <Wire.h>

#define ADDRESS 0xC2  

 

int servo1  = 63;

int servo2  = 64;

int servo3  = 65;

int servo4  = 66;

int servo5  = 67;

int servo6  = 68;

int servo7  = 69;

2-Digit display help !

hello guys,

i have a 2 Digit display here is a link to it : http://www.ekt2.com/products/productdetails?ProductId=be2704fe-15ba-4582-9f2d-5e49eeb0eace

unfortunately i didn't find a pdf for datasheet i just got it on a paper from the shop

i managed to make a personal library for the numbers display but i need to know how to program it for 2 digits with arduino of course ! it's the first time i work with it so i need some guide pleaze to display 2 digit number for example 10 and going up 11, 12, ...

Idea for shift register circuits?

So, I've recently mastered the use of shift registers and have a handful of them laying around.(74HC595's)

Any project Idea about what I might build with them?(possibly something out of track)?

What I mean by this is not knight riders or led cube circuits, rather some whacky ideas - even abstracts will do.

Possibly some fancy circuit you have in mind?

I am not asking for schematics, just running low on inspiration..Any ideas??

Oh and I don't mind using my arduino along with it(As it is what I have!)

Using PiFace but still using I2C

I got a PiFace Display in the mail not too long ago, and just cracked it open.
I got it as a tester to write a review, because I wanted the LED display and the infrared on it.

What's your favorite software for robotics?

Which software do you use for making robots? 

This could be software for anything you use in your robot making, from conception to design, to testing and control. I'd like to steer away from listing microcontroller development environments (Arduino IDE, PICAXE Programming Editor, etc.)

Post your favorites in the comments and I'll compile a list.

Looking for a custom built inspection robot

Hello to all the community,

I'm looking for a micro TIR (tactical inspection robot) either tracked or wheeled but tall about 1,7 cm , wifi controlled by pc or android tablet and with cctv camera.

The Parallella Board?

I was wondering what people think of this board and the supercomputer that this guy built with them.

The Board:

https://www.parallella.org/board/

This guy built his own supercomputer with 8 of them (each with 18 cores) wrapped around a gigabit switch and a couple of Intel I3 NUCs.

The Supercomputer:

https://www.parallella.org/2014/06/03/my-name-is-brian-and-i-build-supercomputers-in-my-spare-time/

Wild Thumper 34:1 slow driving

 I am currently using a 6WD Wild Thumper chassis as an autonomous mapping robot (in progress). I am really struggeling with the PID controller as I often get a humming noise instead of motor turn at low PWM values.

New LMR Slogan!

UPDATE

We've tallied the votes, and the new LMR slogan is LEARN.BUILD.SHARE.

Thank you to everyone that suggested slogans and everyone that voted. A special thanks to OrionBot for proposing the winning slogan! In order to thank you OrionBot, you'll get a small token of our appreciation via e-mail soon. Enjoy!

http://letsmakerobots.com/node/46749

... Are Belong To Us

Know your meme! Rocketboom is funny for so many reasons. This is a must see for anyone wondering about or using that frase "All you base are belong to us!", or variations thereof.

Help with Picaxe and serial LCD

Ok Picaxe Basic Gurus... I think I need some code snippits...

My new serial enabled LCD just arrived and I can't seem to get it up and running. I am using what I think is the standard picaxe basic commands but I am only getting white blocks, x's and some other random symbols. To be honest, I am confused with a lot of the serial commands in general, the whole ASCII thing and anything written as 0x7C or 0x14 or whatever.

Here is the display.

PID Speed Control

Hello All,

I am new to the site and would like some help with DC motor speed loop control.

A basic proportional  control loop actually works.  The problem I am having is that I need my main power supply to vairy, yet keep the motor speed constant.  The project deals with a helicopter where I need to keep constant speed independent of the battery voltage slowy dropping off.

I have designed and used PID loops for DC gear motor position control, but I am having trouble using similar equations in this application that required speed control and not position control.