Let's Make Robots!

Gakken interview - for the record

Dear Rik,

Thank you again for cooperating in our magazine.
(And also for introducing about us in your blog too!)

Following is the questionarie that I want you to ask about your Theo Jansen style robot leg.

Prop Palm

Man, I am a sucker for cool little plastic boxes...

So, Nick from Gadget Gangster posted a link to this guy over on facebook...

Right off the bat, I wanted one! Then of course, I had to check out the supply house for the enclosure. That was a bad idea and yes, I am building yet another controller for walter.

Sneak Peek --Walter's TX, LCD and Graphics

Sneak Peek --PCB's are on their way...

$2 Elfish computer "BlueTooth" Upgrade

For the cost of 4 resistors and a $1.80 Bluetooth dongle - your Propeller chip can join the wireless environment.

....again the Propeller chip just bowls me over with its amazing capabilities.....

For more details of how to accomplish this....... zip over to Elizabeth Scotts site

EDIT :- Now confirmed working with 2$ dealextream Bluetooth Dongle.

RFID Keylock - RBBB Propeller

Continued......... Video explains the details ....including the painstaking job of finding the right house wires....ekkk

Removed the "Elfish PC" as its needed on another project.........

..... Replaced with a super cool RBBB Propeller board M44D40 found on the parallax forum, for 20 dollars.

I choose this board because of its size and simplicity (it has to fit inside my RFID box) .

Maker Faire NYC 2011 Summary

The Let's Make Robots team had a great time at Maker Faire NYC. 

LMR received two Maker Faire Editor's Choice Blue Ribbons. One from Becky Stern and one from Chris Conners

That doesn't include blue ribbons awarded to individuals who are also LMR members, like the two given to RobotGrrl!

ATTiny programmer shield

I got some ATTiny and now need to transfer the program from the Arduino IDE to the ATTiny without a programmer.

The solution is, just make your own programmer shield. Based on this tutorial http://hlt.media.mit.edu/?p=1229 I created my programmer shield for the Arduino Duemilanove. It's not pretty since it's just a ugly board out of my box but it works. Preparing the Arduino duemilanove according to this tutorial and then hook up the ATTiny into the header pin socket, open your sketch and click upload. Done!!!

Crazy (or not) idea: Butler Bot

NOW THAT I HAVE PICTURES, I'VE DECIDED TO MAKE THIS INTO A ROBOT PROJECT - http://letsmakerobots.com/node/31415 THIS BLOG WILL NO LONGER BE UPDATED

 

3D printed firearms(kind of)

first im sorry if this post is taboo and not allowed...feel free to remove it if so

 

first off i say "kind of" because a whole gun is not being printed. just the parts that are considered to be the actual gun.with all the reading lately and my interest in the subject i thought i would share what i have learned here in the blog.

Mind the Raspberry Pi power usage

The RaspberryPi is a powerfull little gadget that can add a lot of good features to your robot. For under $60, including cables, dongle and SD-card, you get a lot of processing power, data storage, wifi and audio. So I ordered a RaspberryPi to be used as the brain for my R2D2 project.

RC bot!

Hey every one! i guess this video will be of help to people who want to make a radio controlled car. i wont be able to make one but heres the video of the model!

https://www.youtube.com/watch?v=sWmPwt5x2bc

Getting ready for the service droid :)

So I've ordered the Dagu service droid :) http://letsmakerobots.com/node/38776

I'm getting the service droid with a Rover 5 (4 motors/encoders), 4 channel motor controller and Dagu Red Back Spider.

I already have a Rover 5 with 4 motors on which I use the 4 channel motor controller and Red Back Spider. I'm powering everything from a 2S Lipo (3000mAh). You can see it here: http://letsmakerobots.com/node/31410 or on my blog: http://www.bajdi.com/category/rover-5/

On my current Rover 5 the 2S Lipo feeds 3 devices:

Pulse oximeter Mk II

I just started to build a second version of a pulse oximeter. If you don't know what a pulse oximeter is, here is a simple but detailed description what a pulse oximeter is and how it works.

Further Progress on framing my RepScrap 3D printer.

Well, this is what the RepScrap looks like today.

 

Prototyping CNC MkII

Late 2012 I started developing a 5 axis, CNC controller. The PCB was made but It was a long term project that ended up sitting on the back burners. I never had time to test it or write code. Although an Arm processor would be slightly cheaper and more powerful I have kept the design Arduino compatible as this is easier to hack for most hobbyist.