Let's Make Robots!

Teaching school kids basic programming and electronics

UPDATE: 19/10/2013

Sorry no updates for a long time. I find that whilst trying to organize lessons and actually doing them I don't find much time to record or take pictures.

LMR Intro Video

 

 

Whilst editing my newest video I found I was getting a little sick of just having an LetsMakeRobots static image at the end of my videos. Because of this I thought I would throw together a short LMR clip to make it look all fancy and stuff.

You are free to download these and use however you like.

The YouTube video is of the clip.

 

Download links below:

mp4 Full HD

Nothing works. Where did I go wrong?

I have tried to build my robot according to the schematics below, but it is not working. Where did I go wrong??

Have fun with it.

 

Robot schematics

Ideas for a Children's Museum Exhibit

There's a very small children's museum near me, and I've talked to them about putting together a robot exhibit. They've shown some interest, so I'm going to put together some ideas. Here's where you come in...

LMR 4 years birthday party

Hello, and congratiolations to all of us :D

LMR 4 years birthday will be officially celebrated in the time from Saturday January 28th to Friday February 3th 2012.

It's almost a tradition that creative souls make some form of artwork to celebrate - and if you should do so this year, please either post it here, or link to it from here :)

Also, make sure to keep an eye on the front page, where announcements and stuff will be posted during the celebration :)

Converting an STL file to Gcode to drive a CNC mill or lathe

As mentioned in my blog, "Multipurpose Mini Machine" DAGU wants to develop a low cost CNC machine kit. The models shown here will not be the final product, they are simply what I used for testing the quality of the components.

Part of the kit will be an Arduino compatible controller. Ok, I know, nothing new so far.

28 Pin Project Board Bluetooth upgrade????

I am interested in upgrading my robot to bluetooth. I used the board from the start here section on the website. I was just wondering if any one has upgraded to bluetooth with this board or if its even possibles. I have seen other setups but im not sure what i should buy or how to set it up.

 

Any help is appreciated. Thanks

3D Printed Logobot?

I haven't jumped onto the 3D printing bandwagon yet, but I know a lot of you have. 

I was thinking, wouldn't it be super cool to have a 3D printable version of our beloved Logobot?

 

It would be a fun project, and a great little printed object to test your printers, give as gifts, or make up for events like Maker Faire.

Pinokio, the robotic lamp

Someonw posted this on G+ and I hadto share it with you guys. I know you're gonna love it!

http://vimeo.com/52366512

Cheap PCB's

You know, I just gotta plug Sparkfun again...

So I finished designing Walter's new main board (now set-up like a 28x board with all servo connectors) and was shopping around for cheap "only-one-board" PCB people. Once again, Sparkfun rocks! --They do 2 sided boards with all the trimmings for only $2.50 a sq. inch. There is a $10 set-up fee but I just got an email back and learned that is per order... You can have as many different designs per order as you want!!! Hell yeah!

By the way-- Here is Walter's new brain(s)

Hello and My New Arduino Robot Project

Hi Guys,

This is my first post here although I have been lurking for a few weeks now. I am brand new to the world of robots and Arduino. I bought my first Arduino in September and I'm just starting my first robot! My robot's name is Herbert...named after H.G. Wells and kind of an homage to Star Trek....

I plan to have Herbert be a long term learning project. I'm starting with simple motor control and moving up and onward from there. Here is my first video documenting my learning about Arduino motor control using transistor circuits:

Android LMR app ..?

Google has made it pretty easy to create apps for their Android OS, that I am sure you have heard about, and possibly use.

I am a heavy user, and I'd like to try and make an LMR app, just for the fun of it. Or have yours on my phone?

But what on earth would be fun or possibly even useful?

Perhaps it's  an all together stupid idea, because one can always just use the phones browser, and get "the real thing" there, even log in and all. Several of my posts have been made that way, from my phone.

Calculating Resistor Bridge

***Update***

Well, I messed around with a lot of resistor combinations, and got really frusterated with sorting through my resistor box looking for all these different values. Instead, I grabbed a pot. I got this one --its a 15 turn, 10k trimmer. I did some preliminary tests and I would love if someone could check my math and calculate the current it is going to draw. Following is the values read with a measure thingie on either "side" of the center pin of the pot.

At 12v:

The Latest In Hobby Robotics

 

Frits has partnered with MAKE to present this video blog of the coolest things happening on LMR. 

Check back on this forum post for new episodes as they air.

Here the YouTube Playlist: