Pibotnix B is sleeping...


A Raspberry Pi controls the two servos to drive the rover as well as stream video from the PS Eye webcam. If the camera is looking left or right when you move forward or backward, the camera will automatically look forward again - this is to prevent you from driving a direction you're not looking in. Hidden in some boxes are RFID tags that have a certain point values of 50,100,150,200. If the rover's nose reader finds points, they will be displayed below the navigation buttons. Check out the rover build and game details: http://youtu.be/tCvL6alGh0c


navic 3/14/2013 4:23:59 PM

The dog outmaneuvered me, now I escape!

navic 3/14/2013 4:26:11 PM

Nooo, my plan is foiled. I call cheating! Picking it up is cheating i say!

navic 3/14/2013 4:35:16 PM

Everytime I get near the promised land you pick me up...
Btw, I found your mop. : )

navic 3/15/2013 12:18:41 AM

I apologize for the connection losses and resetting the location - if the rover gets in the way of family I have to move it lol. The batteries do die and sometimes people crash it into things and break the camera off, so I have to reset and re-glue often. The camera is now placed farther back on the bot so only the chassis will contact objects. Hopefully I can get longer lasting batteries in the near future.

navic 3/15/2013 5:40:04 PM

also you should slow down the left and right

navic 3/15/2013 5:59:58 PM

There is no way to slow down left and right for now. Python's time function is not accurate and the pi-blaster servo code can only turn the servos on and off, no speed control

navic 3/17/2013 12:41:51 AM

This is the coolest use of the internet I have ever seen. Someday, I will do this for myself. Until then, even if there is no speed control, 45 deg. turns instead of 90 deg. turns would be nice (preferably with separate buttons for 90 deg and 45 deg if you would be as so kind as to take the time to do that). That would make control so much easier/faster.

navic 4/9/2013 5:45:11 PM

Turns should be better now

navic 3/17/2013 2:18:54 PM

I see you!

navic 3/17/2013 5:31:01 PM

New features!!! All movement is slower in speed to give more accurate navigation. There are also points now... Hidden in some boxes are RFID tags that have a certain point values of 50,100,150,200. If the rover's nose reader finds points, they will be displayed below the navigation buttons. In order to accomplish this, I had to put an automatic 10 second refresh on the buttons so please be patient until I find a more elegant way to refresh just the points part.

Hope you guys enjoy searching for points! Please let me know if you think this feature is cool or not.

navic 3/21/2013 8:59:28 PM

Shooting a video today, hence the video recorder. Will post the link here when it's complete. Did you find all the hidden points?

navic 3/22/2013 8:38:59 PM

well i found all the ones you said there were and a keychain and a flight shit note and some boxes oh and your other robot boebot

navic 3/22/2013 8:40:15 PM

oh and another keychain

navic 3/23/2013 8:53:37 PM

Video will full details on the build and the RFID game: http://youtu.be/tCvL6alGh0c

navic 3/24/2013 5:45:00 PM

yeh i just watched it i cant wait until i make my first robot but were and how did you learn all this stuff beacuse my school teaches me nothing about electronics but i am going to colledge to learn this stuff and you seem like you are good at it so how long did it take you beacuse i just got all my electronic stuff today so ive allmost got enough to make something but i dont want to kill my pi or blow up the house

navic 3/24/2013 5:51:22 PM

I learned everything from the Internet, I have never and will never step into any school because I know they don't teach the important stuff. With that said, I've never used one site to learn everything, but what I've seen on http://learn.adafruit.com/ is really good. They have Raspberry Pi articles that will help you. I also check out the links at the bottom of products at https://www.sparkfun.com/ because each product they sell have source code examples and schematics to learn from. In my personal opinion regarding learning the Raspi itself is to pay strict attention to the 3.3V limitation of the Pi - do not plug anything into it that is over 3.3V. The logic level converters on both Adafruit and Sparkfun are great to step down 5V sensors and serial devices to 3.3V. Things like Arduino are more power friendly but to keep the Raspi cost down there's no over power protection. What stuff do you have besides the Raspi?

navic 3/24/2013 6:39:26 PM

well since you asked i got 18 5mm led; 200 resistors; some wires; soldering iron; one of those breakout board things; and some 7 digit displays but i dont have anny gpio wires so i cant really do much with them and i spent over 40 pounds on this stuff so i have no money to buy some more until easter so i cant really do much with them at the moment also the wires are thick ones so i cant wrap them around the gpio pins and when i tried it snaped

navic 3/24/2013 6:49:49 PM

The wire is the most important part. If it's too thick and hard to use try to sell it. The best wire for small projects like this are jumper wires. They traditionally come in male to male form to use with breadboards. The Raspi GPIO pins are male so you need male to female jumper wires or the Adafruit T Cobbler: http://www.adafruit.com/products/1105 This will allow you to use the normal male to male jumpers. Here's the selection of jumper wires from Sparkfun: https://www.sparkfun.com/search/results?term=jumper+wire&what=products Electronics like the Raspi and sensors are very low power so the wire can be a small diameter and work fine. To get the cheapest jumper wires I'd recommend dx.com or suntekstore.com from China, but you'll be waiting a while to get them in the mail. If you can sell the wire you have and use that money for a male to female jumper set you can get started with the Raspi, the LEDs and resistors. Hopefully you can get a T Cobbler around Easter, they are the easiest to use with a breadboard.

navic 3/24/2013 6:50:08 PM

yeh i think i might be missing a few things but its a start

navic 3/24/2013 7:10:02 PM

and the wires are male to male so i need a female thing which i saw at the shop i went to so ill get the other stuff next week or so

navic 3/26/2013 3:00:09 PM

Best of luck, if you need any further info let me know

navic 4/9/2013 5:37:55 PM

ok i got lots of stuff and i got an led to light up with a command so all i need now is some motors and a program and i can buid a robot yey!!!

navic 4/9/2013 5:39:59 PM

also can use transistors for the motors i have lots now and i dont want to buy a motor controller

navic 4/9/2013 5:44:11 PM

and do ineed to use one of those darlington pairs for he motor controller beacue i have lots but i dont know if there the same kind its one of those random bags of stuff from maplings

navic 4/9/2013 5:46:29 PM

Have you seen the RAT motor driver? Easy to make on your own: http://www.instructables.com/id/Super-Easy-Reversible-Motor-Control-for-Arduino-/

Glad you've got most of your parts!

navic 4/9/2013 6:01:12 PM

do you need the relay

navic 4/9/2013 6:06:38 PM

Yes you need the relay, that device is the most basic for good motor control so all the parts are necessary.

navic 4/9/2013 6:08:32 PM

oh i just found out what it does and i see you do

navic 4/9/2013 6:11:55 PM

ok ill stop asking questing now thanks for yur help my first robot will be on this site hopefully or some other kind of contraption that i think up

navic 4/9/2013 6:17:55 PM

Have fun with the build, hit me up on Google+ (linked in my Livebots profile) if you need help with the bot.

navic 4/9/2013 8:57:29 PM

Benrox, we've just launched a Livebots Google Plus Community, feel free to join and ask there your questions that we will try to help as we can ;-)

navic 3/26/2013 3:40:33 PM

Im Mi Side It work Perfectly !!! hehe I Got All the Points!! So Creativityy LOve It

navic 4/3/2013 1:39:41 PM

The Robot has an RFID System!!! i meann

navic 4/6/2013 3:20:02 PM

I'm glad you enjoy the bot

navic 5/3/2013 3:10:22 PM

No video.......

navic 5/7/2014 6:20:41 PM

Please turn Pibotnix on again! It looks so cool...

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