Let's Make Robots!

very fast grippers

This has to be the fastest robot hands I've seen...

http://www.break.com/index/ultra-high-speed-robot-reflexes.html

 

Totally Lost. Totally, totally lost.

What I need is a wheeled, remote controled machine that can go into crawlspaces as little as 4" high and as tight as 4" wide, grab a line securely, and allow me to drag the line out. Estimate that the maximum the wieght should ever be is about 5lbs, with forward and aft cameras and lights (assume the microscopic "spy" type cameras and only a few inches of veiwing area for the light).

PICAXE exchange

I have wanted to start on my automatic trash can. I ordered a PICAXE - 08 but, i just found out it can't control servos. I have a servo that controls the lid so i'm in big trouble. So I ask you guys. Anybody have the PICAXE-08M so I can send you a PICAXE-08 plus $1 ( cause it's $1 more expensive). just a little exchange via mail. If you can do it. tell me and we will continue contact through e-mail. 

Cause I already ordered a group of parts from solarbotics and if I want the PICAXE 08M, I have to pay $10 instead of 4 because of the crazy shipping fee.

Please help 

Sharp GP2D120 IR Sensor Readings

Hi.

 

I just built my first robot following the "First Robot" tutorial. The only problem I am having is with the Sharp GP2D120 IR sensor. When I run the code as per the tutorial (i.e. "readadc 1, b1" and "debug"), the values for b1 are displayed as:

 

123, $7B, %01111011, '{'

 

The readings do not change even if I put something in front of the sensor. Do those readings provide a clue as to what is wrong with my robot?

 

Thanks for any help you can provide.

 

TH 

ultrasonic sensors > differential steering

Hi there,

 

I'm a total no nothing about robotics person.

I'm trying to connect the differential steering system of an old electric wheelchair to between 4 and 6 ultrasonic sensors.

 can anyone help me, is a there a kit i could obtain? maybe something i could adapt?

 

thanks everyone!

 

Matt

 

 

 

Battery charger (method) for lead acid battery

Hi all,

Got my hands on 4 of these babies battery

They were for free so i have to use them:-) Would like to have 12V and as much power as possible so I was thinking of this setup:

batterycharger.jpg

QUESTION 1: can I just charge this whole thing with a suitable chargers as if it is one big 12V 20Ah battery or do I have to do something differently?

Has anyone tried the X2 chips yet?

I just ordered a couple 28X2 chips for my porch gardening project, and the changes they listed in the info was sort of confusing.

I'm just wondering if any of you guys out there have tried them yet, and have any comments/gripes/tips/tricks about the newer chips.

I really wanted to try out the 28X2 module they made to compete with the Basic stamp, but I'm poor.

-Z

DC motor question

I was walking through Lowes the other day, and found this great trash can that looked like a robot to me. I was able to pick it up for super cheap!! What I want to do is add two DC motors to the bottom and a caster wheel. I want to make this robot carry my books around school for me. I am lugging more text book weight than I ever did in the Army with my ruck sac. My physics book alone is killer.

Trash Can

Ping))) or SRF05?

I would like to get some sonar sensors, but I cannot decide if I should get the parallax PING))) or the SRF05?

 

Which one to pick?