Yet another Volume controlers and source selections - Page 65 - diyAudio
Go Back   Home > Forums > Source & Line > Analog Line Level

Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 13th October 2011, 08:56 PM   #641
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
for me, its not about atmel. I'm glad that controller level programming is abstracted enough to -not care- what the underlying platform is.

arduino == arduino and that's mostly what convinced me to go that route instead of PIC, for example.

the abstraction just made things so accessible. that said, arduino core is coming to ARM and so atmel architecture isn't really the important thing, long-term.
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 13th October 2011, 09:18 PM   #642
Leon08 is offline Leon08  Germany
Banned
 
Join Date: Sep 2010
Location: at Home
There is always a penalty if you program in high level language.Arduino is no exeption.
It's programmed in C/C++, but any controller can only uderstand assembler commands.So you don't know how the program was really translated into assembler and have no control over it.
This is why so many programs are buggy.
If you program in assembler then you have a total control and can do anything with that controller, but it's more complicated.
  Reply With Quote
Old 13th October 2011, 09:19 PM   #643
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
Quote:
Originally Posted by Pryanick View Post
linuxworks, bargraph style can be change without any prob. I used some other stiles for tests, but yours bargraph style I like more...
that's ok. I also played with others, such as:

Click the image to open in full size.

that was a 'gui' to let me set a min and max window by moving those 2 lines over.

and this one as a single element indicator graph:

Click the image to open in full size.

but there's only so much you can do with the hitachi 'graphics'.
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 13th October 2011, 09:23 PM   #644
diyAudio Member
 
linuxworks's Avatar
 
Join Date: Jul 2008
Location: santa clara, CA
Quote:
Originally Posted by Leon08 View Post
There is always a penalty if you program in high level language.Arduino is no exeption.
It's programmed in C/C++, but any controller can only uderstand assembler commands.
its rare that I have to work around the arduino core. some people do direct port io on a bunch of pins at once instead of the more abstract 'digitalRead()'. you gain speed but once you move to a mega cpu (for example) the ports are no longer the same. I always try for abstract, first; and only if the speed is not enough do I consider stepping outside the system.

or, find other hardware acceleration techniques, or even more chips.

I disagree about assembler. this isn't 1980 anymore C is very good and if you write clean uncomplicated C, there will be *less* bugs than if you wrote assembler.
__________________
My Photostream:http://www.flickr.com/photos/linux-works/
  Reply With Quote
Old 14th October 2011, 07:26 AM   #645
diyAudio Member
 
Pryanick's Avatar
 
Join Date: Nov 2009
Location: Minsk
Send a message via ICQ to Pryanick
Quote:
Originally Posted by Leon08 View Post
Nice work!
Yes. Thanks!
Quote:
Originally Posted by Leon08 View Post
But I don't know why so many people use atmel microprocessors.What's good on them or better said what's better then by other?
I use only Microchip PIC's and i'am happy with them.
I use only AVR's and i'am happy with them
Quote:
Originally Posted by Leon08 View Post
I tried also atmel, but it was much more complicated then PIC's, for me at least.
I tried also pic, but it was much more complicated then AVR's
Generally speaking there is no difference what chip u use, everything depends on language u use for that
  Reply With Quote
Old 3rd November 2011, 08:15 PM   #646
diyAudio Member
 
Join Date: May 2002
Location: Boston, MA
Quote:
Originally Posted by danzup View Post
I will post here a new project : an Atmega IR remote transmitter that is 100% compatible with any project , that way you must not search for an compatible IR remote transmitter .
@RS232 : i will check and if there is not I will post again that firmware .
Danzup,

Have you had a chance to do this?

I built your Volume Control kit last spring and am still having problems with the remote control function.

Thanks,
Dave
  Reply With Quote
Old 23rd December 2011, 10:01 PM   #647
Jempie is offline Jempie  Indonesia
diyAudio Member
 
Join Date: Jan 2008
DANZUP,

i have made the R2R?shunt project, when i don't connect any source on line 1
you hear an hum when connected an source everything is OK, is this normal. can you tell me how to modify this problem
  Reply With Quote
Old 24th December 2011, 03:33 AM   #648
aditya is offline aditya  India
diyAudio Member
 
Join Date: Mar 2010
Location: Bombay, India
Send a message via MSN to aditya Send a message via Yahoo to aditya
hey guys it would cooll if we could change from 2311 or 2310 to 4311 . so the use of relays is not needed, and since TDA7313 or TDA7318 are not available Could the code for TDA7318 be changed for TDA7439 which is easily available and better than the previous one...
  Reply With Quote
Old 24th December 2011, 07:00 AM   #649
diyAudio Member
 
FarmTech's Avatar
 
Join Date: Mar 2010
Location: Hjørring Denmark
Send a message via MSN to FarmTech Send a message via Skype™ to FarmTech
Default About PGA4311 / TDA7439

PGA4311 :
Quote:
hey guys it would cooll if we could change from 2311 or 2310 to 4311 . so the use of relays is not needed
Maybe you need to read datasheet again
Yes it have 4 input/output but not in stereo

TDA7439 :

I made code for this chip , but not a full volume controller with RC5 ect
If other like this I finish this code for M16 / lcd / RC5

Happy Christmas all
  Reply With Quote
Old 24th December 2011, 10:51 AM   #650
aditya is offline aditya  India
diyAudio Member
 
Join Date: Mar 2010
Location: Bombay, India
Send a message via MSN to aditya Send a message via Yahoo to aditya
Quote:
Originally Posted by FarmTech View Post
PGA4311 :


Maybe you need to read datasheet again
Yes it have 4 input/output but not in stereo

TDA7439 :

I made code for this chip , but not a full volume controller with RC5 ect
If other like this I finish this code for M16 / lcd / RC5

Happy Christmas all

well for me TDA7349 rocks but need only keys and lcd.--- with out rc5, gain setting, balance setting.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
source selector / volume hum in Aikido cbutterworth Tubes / Valves 1 28th March 2007 08:34 AM
Source for volume knobs? Alois Pass Labs 4 3rd July 2005 06:12 PM
IC Controlers for Class D Power stage frozenpod1 Class D 14 17th May 2005 04:25 PM
Swichable source and volume pot. Whats the best way? sounder Chip Amps 2 22nd September 2003 07:29 PM
detented volume pots... source? Mach_Y Parts 2 1st June 2003 06:23 PM


New To Site? Need Help?

All times are GMT. The time now is 10:53 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2