Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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

Arduino based LDR volume and source selection controller
Arduino based LDR volume and source selection controller
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 11th January 2019, 10:16 PM   #1151
xbitwise is offline xbitwise  Europe
diyAudio Member
 
Join Date: Oct 2018
Location: Germany
Hi zdr,

Are you still selling LDR kits or just AIO PCBs?
I would be very interested in buying one.

Cheers,

xbitwise
  Reply With Quote
Old 11th January 2019, 10:18 PM   #1152
zdr is offline zdr  Belgium
diyAudio Member
 
zdr's Avatar
 
Join Date: Nov 2005
Location: Brussels, Beograd
Yes, PM me.
__________________
Neb. [LDR Volume Control OLED firmware:]
https://drive.google.com/open?id=0B7...ENmRXNYUEtySVE
  Reply With Quote
Old 14th January 2019, 07:29 PM   #1153
r100 is offline r100
diyAudio Member
 
Join Date: Mar 2013
Default Working well

Hi, a quick note to report back on my experience after a couple of weeks with the VxD volume controller v 2.6 in my main system.

Output is to Peter Daniel Gainclone amplifier, input is from a Allo Kali / Piano2.1 DAC fed by a 320 kbs Spotify stream. Speakers are KEF LS50's.

Safe to say that the sound I'm getting from this set-up is the best I have been able to obtain so far. It is very airy and transparent with silky tight deep bass and beautiful rendition of instruments and voices. I can listen for hours on end working or doing other things and really liking the enveloping effect of the music. When sitting close to the speakers (they are monitors after all), its almost like having a pair of very good headphones on and the spaciousness of the sound is fantastic.

The user interface, remote control and calibration of the LDR's are also very cool.

So, thank you to all involved (especially Neb) in the creation, tuning and optimisation of this great volume controller :-)
Attached Images
File Type: jpg unnamed.jpg (723.1 KB, 124 views)

Last edited by r100; 14th January 2019 at 07:32 PM.
  Reply With Quote
Old 14th January 2019, 07:44 PM   #1154
zdr is offline zdr  Belgium
diyAudio Member
 
zdr's Avatar
 
Join Date: Nov 2005
Location: Brussels, Beograd
Very glad you like it. You should move to the next level and replace gainclone with Roender’s FC100.
__________________
Neb. [LDR Volume Control OLED firmware:]
https://drive.google.com/open?id=0B7...ENmRXNYUEtySVE
  Reply With Quote
Old Yesterday, 08:35 AM   #1155
r100 is offline r100
diyAudio Member
 
Join Date: Mar 2013
Looks like an interesting project but I’ll enjoy the absence of updatonitice for a while longer :-) it’s feels so good !!!
  Reply With Quote
Old Today, 04:58 PM   #1156
marma1961 is offline marma1961
diyAudio Member
 
Join Date: Oct 2018
Hi Guys
It appears that we have a new LDR attenuator with input selector on the market, and it seems that is more advanced too (though a bit on the pricey side). Here the features (taken from the web site):
"The LightStream Mk II is, probably, the most advanced LDR based volume attenuator available on the market.
Here is a list of features that makes the LightStream so unique:
Unique UI
  • 2.8” TFT 24bits graphics colour display with touchscreen Ir remote
  • Real motor-assisted potentiometer for volume control Intuitive operation

Unique Ir remote capabilities

Input selection

Volume

On/Off

Mute on/off

Pairing and unpairing




Unique LDR management

16 bits PWM drivers (65536 steps of resolution) Load settings from 5 KΩ to 60 KΩ with steps of 5KΩ Full calibration of all 4 LDRs individually

101 steps volume settings.

Attenuation from -70 dB to -0.1 dB (approximate)




Unique comfort features

Soft start/stop volume

Channel balance fine-tuning Upgradable firmware

Log volume

Analogue clock

Personalisation of icons an graphics




I/O

4 stereo channels relay operated

1 stereo output

2 digital output for control external devices




Other

Audio ground lift

Power supply 5v via external regulator or 7-18V via internal regulator

Configurable ad a stand-alone attenuator or to be integrated into an active amplifier project Kit available in 3 different configurations
"

The link of the producer is: https://www.thevinylsouce.co.uk
User manual and build documentation is downloadable from the site
  Reply With Quote
Old Today, 05:10 PM   #1157
zgtc is online now zgtc  Europe
diyAudio Member
 
zgtc's Avatar
 
Join Date: Nov 2016
Location: Barcelona
Arduino based LDR volume and source selection controller
the link above is wrong, should be The Vinyl Source | Top Hi-Fi Components made in Britain (r was missing)
Thank you for the info
  Reply With Quote
Old Today, 05:14 PM   #1158
marma1961 is offline marma1961
diyAudio Member
 
Join Date: Oct 2018
Oppssss.....
Indeed, the right link is The Vinyl Source | Top Hi-Fi Components made in Britain

Cheers
  Reply With Quote

Reply


Arduino based LDR volume and source selection controllerHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
LDR Based Input Selection udailey Analog Line Level 27 8th November 2018 04:37 PM
Passive Preamp: Arduino based, remote control, Relay R2R, input selection maxw Analog Line Level 102 17th October 2017 09:05 AM
Another Modified PGA2311 kit with Arduino for volume control and input selection cjkpkg Analog Line Level 28 15th December 2015 10:21 AM
Source select and passive volume for microcontroller-based preamp? vputz Analog Line Level 3 21st July 2012 11:51 AM
WTB: LDR-based volume control / pre jdubs Swap Meet 7 2nd December 2010 02:50 AM


New To Site? Need Help?

All times are GMT. The time now is 08:35 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki