Let's Make Robots!

World's most pointless machine - Ultimate version

Now, do yourself a favour, and see this video.

All of it, to the end ;)

Finds the hidden racing track in every room.. and races it!
Using a
This is updated, reason is here   A video in better quality than YouTube & Google is here How to make Robot Wall Racers yourself, see here Read more

Sorry for the updates - Google video

Google hosted it's own video service way back when I started posting on LMR.

I used to like Google's service better than Youtube, because it was free of ads, and had a better player - so I used that to many videos.

At the time I also thought there was a better future for Google than Youtube. Well, later Google bought Youtube, and now they are shutting down their own video service.

Cheap stuff and Free stuff

We have good news:

Cheap stuff
We have made a deal with DFRobot: From 21'st of March 2011, when you buy stuff there, and give them this code: ALABTU when checking out, you will get a 5% discount, and they will also pay 5% to support future development of letsmakerobots.com.

Free stuff

Arduino vs Picaxe

Should I go for Arduino or Picaxe for my next robot?

(EDIT: Please note that this is a very old post, things have changed :)

Next generation LMR: Submitting robots

Del Rudolph and I are designing the Next generation LMR :)

Now, I can promise you that we can not implement even half of the ideas that our thousands of creative and talented members might have :)

BUT! I would like to ask if there is any fields that you would like added when submitting a new robot project. Or more like; Are there ways to FIND robots that you wuld like? Because if we implement new fields, like "Does it have sound", it should be because you'd like (or think others would like) to look for "robots with sound".

This is just a very simple way of getting a sense of distance
This may be extremely simple, but then again, some one out there might get inspired by this thing that I just "found", so I decided to share :) Actually I started … Read more

How to safely connect more lipos

Hi guys,

I have 2 LiPo's and I want to spit out the united force of them into my circuit. Not sure if that is paralel or serial, and nor do I mind much, I want the verion that gives higher volts. But of course I am afraid of messing with LiPo's , so here you have my life in your hands. Will the below do?


Provides instant life to a robot that you are building
Nick from Gadget Gangster is one guy in the suppliers business who has truly understood that if you support the community, the community supports your business. I … Read more

Connecting Arduino to Mac and PC, the easy way?

While working on an Arduino-start-here tutorial, I am trying to find the most "fail proof" way to hook up an Arduino.

Now, if I could decide what OS and connection everyone had, it would be easy as this:

* Install Ubuntu 10.10 OS on your PC
* Install The Arduino IDE (and write your program)
* Insert an USB-FTDI cable from conputer to Arduino board
* Select the serial port

- And done, you can now press the "upload"-icon, your program will compile and upload.

The above is so far the easiest I have found.