www.robowars.org

RoboWars Australia Forum Index -> Builders Reports

Twisted Constructions
Goto page Previous  1, 2, 3, 4 ... 39, 40, 41  Next

Post new topic   Reply to topic
  Author    Thread
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Satellite receiver is a little receiver which comes with the HK TXs. I think I removed them from your kit as extra parts confuse people. It needs a fair bit of software to work but its basically an extra receiver.

I can program it to mix or whatever.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Sun Jun 27, 2010 4:46 pm 
 View user's profile Send private message Send e-mail MSN Messenger
Philip
Experienced Roboteer


Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane


 Reply with quote  

Thanks.

Do you know of a site with good beginners programing information?
_________________
So even the rain that falls isn't actually going to fill our dams and our river systems

Post Sun Jun 27, 2010 5:12 pm 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

I started writing this months and months ago as an extra resource for a subject I am tutoring. Its on programming in assembly. But this may just be more confusing. I would try doing a few things just on PC in python/C/C++ to start off with leave the embedded once you have a bit of a grasp of how things work.

http://dl.dropbox.com/u/815267/ENB244_Supplementary_Robotics_Notes.pdf

^^It hasn't been proof read and is no where near finished. Also assembly is really very low level and unnecessary in 90% of applications today.
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Sun Jun 27, 2010 5:19 pm 
 View user's profile Send private message Send e-mail MSN Messenger
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Ok well I think I have my head around the satellite RX code. There is a fair bit of bit banging which may get pretty interesting as I don't have a scope......

I have a some sample code which is for an Arduino Mega. The B-328 is sorta Arduino compatible so I could finish off / port code in Arduino or I could port it to C. Or even assembly if anyone wants to do some crazy stuff which needs ultra fast code.

Does anyone have any preference ATM I am thinking of porting to C. But if people would prefer it in the simpler Arduino coding format I can leave it there and just finish/fix it for B-328.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Mon Jun 28, 2010 4:21 pm 
 View user's profile Send private message Send e-mail MSN Messenger
kkeerroo
Experienced Roboteer


Joined: 17 Jun 2004
Posts: 1459
Location: Brisbane


 Reply with quote  

I'm still old school radio stuff here so what is this satellite Rx? I am Interested in getting rid of the slow 50Hz servo pulses and have been working on my own 2.4GHz system but can't afford PCB prototyping at the moment.
_________________
Get Some!!!

Secretary of the Queensland Robotics Sports Club inc.

Post Mon Jun 28, 2010 5:28 pm 
 View user's profile Send private message Send e-mail Yahoo Messenger MSN Messenger
Spockie-Tech
Site Admin


Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia


 Reply with quote  

http://www.google.com/images?q=wiring%20pencil

Greatest Prototyping tool I've ever found.. Smile

I wish I had known about them 20 years ago when I started making proto's with wire-wrap wire by hand. You need good short-range eyesight (or a magnifying lamp) and a steady hand, but with one of these, some donut-ring perf board (Jaycar, Dick Smith) you can knock up (and easily change) a prototype in no time. You only go to etch-PCB's once the design is finalised

Available in Aus (and the spools of wire) from Farnell for about $20, or make your own out of a standard CLick-LeaD Pencil and some bent coathangers.
_________________
Great minds discuss ideas. Average minds discuss events. Small minds discuss people

Post Mon Jun 28, 2010 10:28 pm 
 View user's profile Send private message Send e-mail Visit poster's website MSN Messenger
Philip
Experienced Roboteer


Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane


 Reply with quote  

quote:
Originally posted by marto:
Does anyone have any preference ATM I am thinking of porting to C. But if people would prefer it in the simpler Arduino coding format I can leave it there and just finish/fix it for B-328.

Steve
Assuming you are asking because you intend to give out the code once you make it, I would like the Baby O to mix two servo signals with a logarithmic response and the ability to use a nano gyro. I would not presume to talk about codes.
_________________
So even the rain that falls isn't actually going to fill our dams and our river systems

Post Tue Jun 29, 2010 6:08 am 
 View user's profile Send private message
Knightrous
Site Admin


Joined: 15 Jun 2004
Posts: 8511
Location: NSW


 Reply with quote  

quote:
Originally posted by kkeerroo:
but can't afford PCB prototyping at the moment.

PM Dumhed, he has a PCB router that can make up boards from Eagle/Protel files for good prices.
_________________
https://www.halfdonethings.com/

Post Tue Jun 29, 2010 8:22 am 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Mixing is the easy part. Nano Gyro I have no idea about. Is this an RC product or am I adding a gyro to the chip. Can be done and I am interested but need a bit more info.

Hard part atm is interfacing with the Satellite RX form the hobbyking radios. Once that is up and running should be easy.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Jun 29, 2010 9:38 am 
 View user's profile Send private message Send e-mail MSN Messenger
Knightrous
Site Admin


Joined: 15 Jun 2004
Posts: 8511
Location: NSW


 Reply with quote  

quote:
Originally posted by marto:
The B-328 is sorta Arduino compatible so I could finish off / port code in Arduino or I could port it to C. Or even assembly if anyone wants to do some crazy stuff which needs ultra fast code.


Arduino please Wink
_________________
https://www.halfdonethings.com/

Post Tue Jun 29, 2010 9:43 am 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Fine well link me to where to setup environment for B-328 if you can.

You can use C functions directly in Arduino you know.

Steve
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Jun 29, 2010 9:57 am 
 View user's profile Send private message Send e-mail MSN Messenger
Knightrous
Site Admin


Joined: 15 Jun 2004
Posts: 8511
Location: NSW


 Reply with quote  

Programming Orangutans from the Arduino Environment , specifically, Section 3 .
_________________
https://www.halfdonethings.com/

Post Tue Jun 29, 2010 10:52 am 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Why must they hide these things. I was looking for that for ages lastnight.

Well should be pretty simple once I get serial setup so I can debug it.

Will keep you updated on progress
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Jun 29, 2010 11:03 am 
 View user's profile Send private message Send e-mail MSN Messenger
Philip
Experienced Roboteer


Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane


 Reply with quote  

quote:
Originally posted by marto:
Nano Gyro I have no idea about. Is this an RC product or am I adding a gyro to the chip. Can be done and I am interested but need a bit more info.

Steve
It is a normal hobby gyro, but tiny. http://www.hobbycity.com/hobbyking/store/uh_viewitem.asp?idproduct=4320 I just didn't know if it would plug in with the satellite rx.
_________________
So even the rain that falls isn't actually going to fill our dams and our river systems

Post Tue Jun 29, 2010 7:00 pm 
 View user's profile Send private message
marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


 Reply with quote  

Hmmm I am not 100% sure how gyros work in the RC work. I assume its meant for tail rotor of heli and just runs some PID loop to keep angular rate to ~0. If so what you could do is apply a constant 1.5ms signal and then read in the output signal and use that to determine your spin rate.

However I am not sure how well it would work on the little ants and is it really necessary?

In any case I can play with it if you want it but it might be easier to get a dedicated gyro sensor rather than trying to work with RC stuff as we aren't actually generating RC signals digital data is read straight in from the satellite receiver. e.g.
http://www.sparkfun.com/commerce/product_info.php?products_id=9165
_________________
Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Jun 29, 2010 7:45 pm 
 View user's profile Send private message Send e-mail MSN Messenger
  Display posts from previous:      

Forum Jump:
Jump to:  

Post new topic   Reply to topic
Page 3 of 41

Goto page Previous  1, 2, 3, 4 ... 39, 40, 41  Next

Forum Rules:
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

 

Last Thread | Next Thread  >
Powered by phpBB: © 2001 phpBB Group
millenniumFalcon Template By Vereor.