Let's Make Robots! | RobotShop


Strolls around, moves its head back and forth and makes Star Wars sounds...

This is my version of the famous R2D2.

It strolls around, moves its head back and forth and makes Star Wars sounds...

Apart from the motors and microcontroller, everything is made out of junk: Scrap, leftovers and dismantled parts.
For example, the head is made of a Maraca (Rumba Shaker). The body was a water pipe in its previous life and the legs were tongue depressors (unused - I hope).

The brain is a PICAXE 08M, programmable via a socket at the back of the robot. Muscles are two cheap 9g servos and one gear motor (GM3).

What's left:
1. Install a cliff sensor (actually, it already has one: When it senses the end of the table it automatically falls down...)
2. Create/Find real R2D2 sounds for the PICAXE - Any pointers will be most welcome!
3. Recharge circuit for the batteries.



Open Brain Surgery

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
my has one to


My suggestion is to add some leds on the head (just like the "real" one). As for the sounds, if you want to make even more complex ones you could go for and ISD chip (chips that record and playback a variety of sounds), that is if you have space of course.

 Thumbs up for the driving mechanism, you don't see that quite often. :=)


I tried to add LED, but it took too much juice, so not much left for the engines - too bad. :(

Regarding the ISD - I agree it would be cooler, but miss the whole concept of this robot, which is to see what can be done with minimal cost. Perhaps in the next project...

Very cool! I've been thinking about building a small R2D2 like this as well. VERY creative use of found/recycled materials. If we could still rate postings I would give you the full 5 stars for that alone! It appears the GM3 is mounted in the little base in the front? Inspiring post...

Reading replies like this makes all these sleepless hours almost worthwhile. This supporting environment is the reason I like LMR so much! - Thanks!!

 Regarding the GM3: It is mounted beneath a servo inside the body and serves as a third leg. For aesthetic reasons I covered its visible part with the a base.

I don't know if it's needed, but if people will want to, I guess I could write a short construction walkthrough.




Yay! That 'd be cool!

this would be cool since i am planning my own little R2D2 and need a bit inspiration and insight...

I still intend to write the walkthrough, but unfortunetly I'm a bit short of spare time these days.

In the mean time, if you have any questions - feel free to ask me.

...alot but i also do not have much time yet...will see how to plan it later...and then the questions will come ;-)

check out this bot: he makes his r2 sounds with a SpeakJet, if you're interested, let Calculon know.

LOVE the drive, btw.