Let's Make Robots!

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Senses current drawn by a motor
This simple circuit will allow your processor to monitor the current being drawn by a motor or any other device. The circuit shown will monitor currents up to 20A … Read more
Gives you a wireless connection to your robot
Recently I tried to set up a wireless link between my laptop and a robot so that I could upload new sketches and adjust certain parameters of the program while the … Read more

Interfacing yor robot to your PC using Gobetwino (can work with any MCU)

I am currently working on a project where I need to teach my robot to "see" using an ultrasound sensor. In particular it must find and collect drink cans on a playfield and return them to a specific location.

To make the programming easier I wanted to take the sensor output from the robot and display it on the computer as a chart. As I am a terrible programmer I did a quick google search and came up with Gobetwino.

Helps you burn the bootloader on a ATmega168PA.
Introduction: These instructions were based on Arduino 1.0 running on Windows XP. They should work for other operating systems. Since version 0018 of the Arduino … Read more

Maker's Faire - ShenZhen China

This was the first Makers Faire where I got to go with ChopSticks!

It was the first Makers Faire ever to be held in China so as you might expect it was not the huge spectacle that the American faires are. Eric Pan, who is the CEO of Seed Studios and currently sponsering LMR did a great job in organising this event.

Miniature servo magnetic clutches

Miniature servos are great for robotics, they are small and cheap. Unfortunately they have very small plastic gears that strip easily so they always need replacing....  or do they?  Not any more!!!

Controls more servos than you can fit on one robot :p
Using a
This tip/walkthrough will work with all Arduino Mega PCBs and their clones. I have found the instructions for the servo command to be a little vague so in this tip … Read more

Micro Magician robot controller - I can finally tick the project complete box!

I started designing this controller in December 2011. After 4 months and 2 previous revisions it will finally be shipping out April 2012. I think this is DAGU's best Arduino compatible robot controller yet!

Designed for small robots using small batteries, the Micro Magician is a 3.3V controller running at 8MHz.
Working from 4.5V to 9V means this constroller can run from a single LiPo cell or 3x NiMh batteries.
Reverse polarity protection means no blue smoke if you get your power wires crossed (reverse polarity diode rated at 3A).

Mini Makers Faire - ShenZhen, China - LMR will be there!!!

Much to my surprise and delight, DAGU will be attending the Mini Makers Faire in ShenZhen. We will also try and setup an LMR stand. I know this is short notice as the Faire is only 1 month away but I would like to invite LMR members to attend or at least send in one of their robots.

Links to photos and videos will also be welcome. I will get the photos printed and use them as a backdrop. I will have at least one large computer monitor playing LMR videos.

Learning to use "make" files to compile a new Arduino bootloader

G'day everyone. I am not a professional programmer, I have not had any training in C language. Previously I had a lot of support from LMR and learned to write an Arduino Library. Now I am trying to compile a bootloader and need help again. I've installed WinAVR and AVR studio and have been trying to find out how to use them. It seems I need to learn to use a "make" file but I cannot find any good information on how to do this. Most information on the net assumes I am a programmer.