Let's Make Robots!

Basic electronics explained in cool informative way (Schematic and IR Light Update)

Gareth's picture

Basic electronics explained in cool informative way by Colin of Makezine, including simple electronic experiments.

Videos as follows:- (links are URL)

DAGU parts price list for LMR members only

OddBot's picture

I have now removed the pricelist as we now have distributors in Europe and America.

European customers can buy from: Arexx Engineering or Conrad.

American customers can now buy from Robot Shop.

LMR Primer - Useful Links for New Members and Old Alike

ignoblegnome's picture

"How do I build a robot?" 

"Which processor should I use?"

"Can you teach me to do that?"

These are the sort of questions we get again and again on LMR.  We're a helpful bunch of people, and we want you to have fun and learn too.  You are a very talented person.

The links I've collected below are ones that I feel may help you find what you are looking for. There are tons of other great material on LMR. Don't limit youself to the list below, but do check them out if you have questions in those areas.

Sell your robot design

fritsl's picture

Hi Guys,

Consider this an initial test, and if it works out well, we will get more organized and set things in a system. But for now..:

If you have a robot that you think would make a great gadget as a finished product, you now have the option of selling this design to our friends at Seed Studio.

They will eventually need this:
A finished and working prototype, Gerber files, Eagle files, and Bill of Materials.

But first they need to approve the product.

So the way you move ahead is as follows:

very cheap GPS

arbarnhart's picture

I posted this as a comment on the cheap FTDI cable idea and it occurs to me that a lot of folks who might be interested will miss it there...

Multiple swithces to analog input?

Aniss1001's picture

Just had an idea. I'm planning to use a LOT of (tactile) switches on a walking robot. For instance I wanna put several under each foot. But it seems like a waste of pins to use a digital pin for each switch (or use multiplexers). So I thought I might be able to connect the switches in paralel and read several at a time from an analog input using resistors of different sizes connected in serial with each switch. Like this:

switches_s.jpg

Live soccer robots on LMR

OddBot's picture

Recently Gareth suggested to me that it would be good to have 2 teams of my bi-ped robots playing soccer. This was too good an idea to ignore.

After talking about this idea backstage this is where we are at:

Other robot builder communities

fritsl's picture

When we started this LMR-thing, there where not really that many robot-builder communities. Now I see them pop up, I just discovered the one that I will post below as a comment to this.

Apparently LMR is still the worlds biggest of it's kind, according to different websites that compare traffic, google-ranking etc.

So, I think it is in place to spread a little of our love, get the other guys some visits!

List of good online shops for bot parts

jgillick's picture

I was wondering where online most of you go to shop for parts? Can we construct a master list of important websites here?

This list is from the URLs I've gathered from the various tutorials:

Cheap PCB batch house

patrickmccabe's picture

Update 05.04.11: Seeedstudio now cheaper with more options!

Robot 3D vision software

ROVguy's picture
Embedded video: 

LMR keyrings and other merchandise

OddBot's picture

During my time as a member of LMR I have seen the odd discussion about LMR T shirts, caps etc.  Jack would like to help promote LMR and is looking at producing some keychains.

The minimum order is 300 and it cost about $600 USD to have the mold made. We would sell them at cost ($2 USD) or give one out with every order from an LMR member. We are not doing this to make money but to promote LMR as the best robot site on the web.

Below is the design Jack proposes. What do you think? Does LMR need or even want merchandise?

Best way to monitor battery level?

Calculon320's picture
With a picaxe or arduino. Best answer gets a cookie. OK, Go!

Darwin is a hacker

rik's picture

How many monkeys on type writers does it take to write the collected works of Shakespeare? Or Asimov for that matter? It has been claimed, but never tested, that a limited amount of monkeys will indeed produce such a work.

Given enough time...

Arduino Hand

Gareth's picture

I stumbled into this on the Internet :-

A simple elegant Hand sensor - servo finger combination.

EDIT :- YES I AM SHOUTING ......PLEASE NOTE THIS IS NOT ONE OF MY PROJECT

(however sponsor me the bits and i will make an LMR one)

Embedded video: