Let's Make Robots!

Festo robotic flexible arm


Nice flexible robot arm with gripper. No motors only air pressure.


How to connect Rover 5 with arduino?

Simple connection for Rover 5 to arduino.

It's possible to connect Rover 5 to Arduino withous a Dagu - 4 Channel DC Motor Controller with Encoder Support . 

Please manuals, tips, very new into this..

Thanks in advance!!


how can i determine how much max current can my dc motor draw?


Linux voice recognition

Allright Tux lovers-I'm looking for a GNU voice recognition system that works as well as Mac's (or Siri, I guess.) Wifi dependent or embedded, whichever, for a SBC (Beagle/Raspberry/Panda, you get the idea. Any suggestions?

Charging batteries

Hi I would like to make something which can be charged Without taking the batteries out of the robot. I am thinking of using nimh batteries as I have heard that lipos are crazy and hard to do.

BLDC motor controlling, the hard way

I am going through two processes now...

The first, is removing the spider webs from electronics capabilities of yesterday ; The second, is (during this process) controlling an HDD 3-phase BLDC motor with arduino.

Yes, I know I can simply use an ESC component and save myself the hassle of "figuring it all out", simply plugging in the speed controller to the motor 3 pins, 12V battery and simple signal from my microcontroller (arduino) to set the speed/direction .. and voilla. That's it.

BUT..where's the fun in that??

The future of hobby robotics?

Hello dear LMRers! Not long ago I launched a blog at ohmnivore.co.nr . For a start, I wrote about an idea I had in mind for a long time and that has me wondering; why are there so little RaspberryPi-powered robots? I post this to stimulate a discussion about the RPi (I'm aware a lot more people will see it here, not at my blog). I'm too lazy to edit all the links, so the original version with working links is here.


Driving a motor with arduino...

I need some help with driving dc motors with arduino. I have already looked at the arduino site and all I found was this http://www.arduino.cc/en/Main/ArduinoShields and no guide or parts list.

I have gone thru all of the lessons here http://www.ladyada.net/learn/arduino/  and ithas been really fun so far but I WANT TO BUILD ROBOTS! NOT BLINKIE LIGHTS! :)



Robotic Airship, some ideas :)

So i was looking at some flying robot designs, just out of curiosity. I ruled out helicopters and planes: they require too much precision in crafting and are too complex.. But alternatively an airship could probably be built :)

I've read on wikipedia that a square meter of helium can lift about 1 kg. A square meter means a big balloon, but a Kg is plenty of weight for electonics!

If you use light components, you can probably stay under 0,5 Kg or even less.

LMR 2 years old

At the time of writing this, LMR is about to celebrate it's 2 years birthday, and already people are bringing presents in the shape of birthday related pictures and stuff.

Please, if you are doing so, link to it from here (if it is a robot, blog entry etc) - (or directly write below if applicable)

Hoorayy :D

connecting an i2c device with an AXE020 project board.

I've been thinking about playing around with 

Building a Universal RF Remote - Questions

More Recent UPDATE: the competed remote can be found here. Thanks to fritsl and rik for their respective helpfulness.

UPDATE: Attached (and blurrily pictured below) is my schematic that i think will work for this remote. Yes I drew it in paint, Yes it took too long:

*The "To Breadboard" leads are included so that the remote may also serve as a portable power supply.




ModKit: new graphical programming environment for Arduino boards

I heard about a new graphical environment for Arduino boards, called ModKit, ready to emerge from alpha testing. Want to teach your kids (or a club) to program their Arduino robots? This is the best tool for the task. Easy to use blocs stack together much like the old Lego Mindstorms GUI, making programming fun to explore. Then you can see the generated Arduino code, modify it if needed and upload it directly from the browser. Oh, did I mention you can use it online?

Dagu Rover 5 shedding tracks on turns

Hi guys, Hope this is the right forum. I'm building a robot based on the Dagu Rover 5 chassis and experiencing problems with it shedding it's tracks. The motor angle is about 45 degs. Anybody had any experience with these and stopping the tracks coming off (even on smooth hardwood floor) during a turn? I'm hoping someone has done a modification or something to keep them on, other wise this Robot may be getting itself converted to tires :-( Thanks guys Shane