Big WALL-E

radmeck

USA
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My son named this guy Big WALL-E in comparison to the smaller Interaction model he aptly named Little WALL-E...

Big WALL-E began life as a U-Command model and he (and his unfortunate owner) apparently spent a great deal of time over the past few years in some sort of second-hand smoker's Nirvana; yet I saw no mention of it on his eBay listing. At any rate, he was cheap and he dried out after a few months so it all worked out. Although it did take some time convincing a 5 year-old that Big WALL-E was destined for greater things and that playing with him while he was still oozing nicotine was a recipe for asthmatic disaster.

Here are a few pics of his progress...

Tops:

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Under Tops:

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Tails:

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Under Tails:

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Bustin' Loose:

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Spillin' Guts:

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Synthiam
#1  
Whoa nice work!!! That is far more professional than any hack i've ever done! The chain linkage is genius!

I saw you mounted a sharp distance sensor on a servo. The latest ARC has an automatic object avoidance mode setting in the Sharp IR Radar Control. I will release it right now for you to use. But a warning, I do not have a robot with a sharp IR Sensor with me on this trip to test with. I do know the Ultrasonic Ping version works flawlessly, but I can not guarantee the sharp IR version works, yet.

If you wanted to try it and let me know. Otherwise, I'll be able to test it when I get home:)

Again, awesome modification!
DJ
#2  
Thanks. I just finished the ladder chain assembly late last night. I haven't even had a chance yet to properly hook him up to the EZ-B!

Certainly post the latest ARC version... But before I can turn anybody loose I need to come up with some form of boundary/edge detection since I live on the 3rd floor and I don't want anyone tumbling down the stairs. Any ideas?
United Kingdom
#3  
Hi Radmek impressive build I must say

I'm planning to use a QRD1114 IR Detector which can be used for line detection and no contact surface detection. These have an effective range of 6mm (1/4") check out DJ's Omnibot build pages on this site
;)
HWtech
Bildr.blog page with circuit
I'm going to try this circuit tomorrow using one ADC port of the EZ-B Board
PRO
Synthiam
#4  
On my Wall-E, I used a sharp IR distance sensor (the same type you are using) pointing down on an angle.

During initialization, i get the value of the IR sensor. If the value changes within a determined percentage, I backup and turn around. This helps for both raised and lowered surfaces:)
#5  
Thanks winstn60... I'm digging the form factor of the QRD1114 but I don't know that 6 mm will be enough. Think I might try embedding downward-angled Sharp sensors front and back to make sure no one backs up down the stairs either...

Thanks again for the comments. I spend a lot of time working out solutions that won't compromise the toy look of the exterior (5 year-olds can be demanding). I don't use glue so all the pieces come apart by removing a few well-placed screws, making it easy to upgrade and reconfigure down the road. That being said, I'm definitely more of a hardware guy so I'll need all the help I can get when it comes to programming!
United Kingdom
#6  
I'm with you Radmeck nothing can beat a good nut and bolt so I can get inside and fiddle about with stuff. Now we have the sharp IR anti collision detective in ARC. I'm tempted to trial the sharp IR distance sensor out as well and ordered two today. But it will mean hacking into my Omnibot base a bit to fit them. Sharp also make some other devices that look good for the same purpose. Also the tilt detector looks fun after your Robot falls over that is!!
check this page out

I've just been trying out the new features in the latest build its going to open up loads more possibilities awesome stuff DJ
PRO
Synthiam
#7  
Wicked to hear!

The Radar Scanner contains automatic collision detection also. The "Collision Detection Control" merely stops the robot, and does not turn. The Radar Scanner will actually turn your robot for you:)

One of the things I like to do, is not be autonomous all of the time. I like to put some randomness in there so the robot goes, and stops. Adding a Radar Control with Collision Enabled (in the config window). Also check "Only scan moving forward".

Then make a script control and put this in it...

Code:


SleepRandom(10000, 60000)
Forward()


Then if you want your robot to randomly turn around and not just bounce off things, put this in a second script control.

Code:


SleepRandom(10000, 90000)
Left()
SleepRandom(10000, 90000)
Right()
#8  
Outstanding! I was thinking just this morning that adding two tilt sensors would go a long way in adding personality - having events fire if he gets turned over for sure but also having him react by firing various random events as he reaches the tipping point (such as shifting an internal weight to compensate or quickly reversing direction to right himself and avoid tipping over, all the while triggering MP3s of hims saying things like "whoa whoa whoa!!!"
PRO
Synthiam
#9  
HA! Brilliant! I can't wait to see:D

I have been working on a Wii Remote Control for ARC. It will work similar to the Joystick control. Where you assign servos or motion to the axis and scripts to buttons.

I have most of the code done (i think). But I do not have a Wii Remote to test with while i'm on the road. I'll be able to test and release the code when I return to Calgary next week:)
United Kingdom
#10  
Wii remote will be a great addition!!:) can't wait!!

Whats your veiw on hacking a Wii remote and using the camera in a robot for navigation or other stuff. The Wii bar thingy is just infra red LED's.

This quote from instructables

"The Wii IR camera is a beautiful thing. It has an integrated processor which outputs the X and Y positions and size of the 4 brightest IR points that is sees. This can be very useful for tracking in robotics or human interfaces" also there is a speaker and accelerometer

Looks like the camera uses I2C
#11  
winstn,
please google or ebay search for wiichuck adapter for arduino, or "wiichuck arduino"
for $8 you plug this little adapter into the wii cord without cutting it, and it fits in the arduino. it may fit in ez-b just as easliy, not sure. anyway, this is just so you can use a wii joystick
Australia
#12  
Will you be adding a Wii remote function to ARC aswell?
PRO
Synthiam
#13  
Its happening right now
Australia
#14  
Awesome. Sadly I don't have a Wii remote. I can think of a number of ways to incorporate into my security camera, using it to control the servos that rotate the camera on both a horizontal and vertical axis. Will the buttons on the remote have similar functions to those on a joystick? Also, is there any hacking required. If not I could maybe borrow one from a friend
#15  
creativita, please upload your picture to your avatar.

creativita, i went to a "family dollar" store, its like dollar general here in usa.
i bought a wii remote for only $8
of course it was probably a chinese replica, but o well
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