Let's Make Robots!

Yin and Yang

This is an idea for a pair of matched robots, "Yin" and "Yang".  This pair will be almost identical in phyical construction, but very different in programming. 

Yin_yang_small_.jpg

Yang will be aggressive, and constantly seek to attack Yin.  Yin will be passive, but not defenseless, preferring to dodge and avoid rather than directly confront.

ROV parts

I'll do some research into building a ROV.

I'll start by finding nearby vendors and usefull online tips. 

Since I  live in Norway many of the links posted here will be worthless for anybody but myself, but then again, this is my blog, why should I care?

Relay Wiring for "H" Bridge Relays 

tube for sceleton 

Vacuum forming plastic parts.

Heres a few photos of my home made plastic vacuum former and its maiden test. If you don`t know what vacuum forming is check here, and youtube.

Essentially a sheet of heated plastic is placed over some kind of mould which then has the air sucked out from underneath it. The soft plastic schloops to the shape of the mould and when it cools you have yourself a robot part. It really does sound like schloop if you`re wondering.

P1000906-400.jpg

08.04.09 0044: BARE PICs

I've been spending the better part of the last few months studying to become more familiar with bare PICs. I'm not too sure what it is exactly that attracts me to using bare PICs in lieu of using an "Arduino" or "PICAXE", but I've made the decision to utilize bootloaded microcontrollers solely when prototyping.

NINA - The Robot

Hi everyone! I'm new to LMR. I got into robotics a few years back when something hit me. "Hey! I know what I can do this summer! I'll read books on robots and learn how to build them!" So that's what I did!

Nina's Mobile Base Module

The Claw Bot

 This is my third bot. I used a few ideas from my other two and added the lifting arm and grippers. I am hoping to be able to search for, lift and carry a beer can, full would be usable but I doubt if the power is there with the present motor.

 Updated Photo: 1/13/2010, Added a Function Test Video 1/16/2010

Mechanically the bot is complete. I have enough code to test all the functions.

Robot_3-25.jpg

 


Drive Gearbox:

Affordable Robtics Platform ( ARP ) USB v1 introduction

ARP is aimed at introducing affordable robotics in India / Third World countries. Our aim is to introduce a robotics platform with is around USD 20 and is capable of basic feats like line following line following, Object avoidance , photovhore , remote control while being scalable/reprogrammable. We are inspired from Asuro , but find it too restricting. So we plan to develop our own. We have tried to cut costs where possible without loosing functionality. Given below is Arduino/Freeduino based ARP USB main board,which will be on sale for about 9.95 USD or Rs 450.

The Pulse - 2009w33

LMR on the Brain
Sensing the living LMR community since 2008w43.

Ten thousand

This week LMR is hitting the 10000th node. A node is a page as our content management system calls them. Look in the URL bar if you have never noticed these numbers before. Ten Thousand must be some sort of anniversary.

Arduino Diecimila Questions

http://www.arduino.cc/en/Main/ArduinoBoardDiecimila

ArduinoDiecimila400.jpg

which ports can support servo control? and where are they located?

I'm getting one leter this week, and I have absolutely no idea how it works.

 

Slip Ring

To support my idea for building a 360 degree range finder, I want to build my own slip ring assembly.

I'm thinking of using a copper clad board to create concentric rings. I found a manufacturer that uses this technique. I posted a picture from them below.

slipringPlatterSeparates_prod_banner_narrow.jpg 

Water Present Sensor?

I seem to have a lot of water on my floor... From accidental uncleaned spills or melting dropped ice cubes. My last bot went over un unseen puddle of water and guess what... it died. So I was wondering if anyone knew of a cheap sensor that could detect water or even a way to make one. Thanks in advance.

PIC and PICkit Problems

I just began to tackle bare PICs again with the 12F509. Simple baseline stuff. Just for good measure as to whether or not I remembered what the hell I was doing, I tackled the task of turning on a LED. :p I used the following user code:

 

Pablo the Pool Toy

Introduction

This is a concept for a robot to monitor and manage my swimming pool.

Design Goals

My Shopping List (feel free to ignore)

Why would you care what I'm shopping for?  Well, you probably don't.

Still here?  Go build a robot!  Here's what I'm shopping for to build some of my own.

September 2009

I need stuff for Mr. Suspense!  Plus maybe some other goodies.

Mr. Suspense

The Pulse - 2009w32

LMR on the Brain
Sensing the living LMR community since 2008w43.

Summer Time

And the livin' is easy. Well, on my hemisphere anyway. It's been "4 weeks 1 day ago" since I had my last "100% fix".

Hand held battery vacuum cleaner

I bought a cheap battery powered vacuum cleaner from dealextreme to build into Ozzy. The idea was to build a front mounted vacuuming attachment as inspired by emullers vacuum bug. I was pretty skeptical of its sucking power and for about $6 with free shipping worldwide I wasn`t expecting it to be very useful. Now that it has arrived I can say yes indeed it does suck! In a good way!

Heres a small pre-hacking photo review.

Bootloading

Well after complaining about the difficulty of programming PICs "http://letsmakerobots.com/node/9162" I remembered bootloaders. Originally I thought that boatloaders were just for Arduino's and PICAXE's, but after some investigating, I realized that they're a completely valid alternative to programming hardware! 

Questions on my new 16x2 Crystalfontz LCD display

This is mostly directed at voodoobot, because he has one of these same LCDs (sorry!) :D

However, most serial 16x2 LCDs are pretty much interchangeable... so anyone can help out here. I'm looking at the PDF datasheet here-

http://www.halted.com/objects/catalog/product/extras/23006_CrystalFontz_CFA632_v2.0[1].pdf 

(and while you are at it, check out HSC- http://www.halted.com/   Its a great surplus electronics store in California, so yeah. You can drop by them on Ryder Street in Santa Clara, or in Rohnert Park. There's another in Sunnyvale I think...)

Getting ready

Hello everyone! :D

I'm new to the site and building robotsand got very inspired of all the robots on the site. :D

 And it seems that making a simple bot is easier then i thought :O

 

After reading some of the tutorials here i decided to start making my own bot,so today i bought some tools that i needed.

Things like: Soldering iron (and a stand/holder), heatshrinking tubes, solderingtin and some wire. didn't find any jumpers tho :/