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Old 22nd March 2011, 06:12 PM   #511
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Quote:
Originally Posted by DavidMM View Post
FarmTech,

I looked at your "farmtech no vu" firmware to fix my remote problem, and noticed it is made for the LCD version.

I am using an LED and was hoping you could add the RC5 learning remote function to the LED firmware.

I know this is a lot to ask, but would greatly appreciate your help.

Thanks,
Dave
Hi David,
I think its faster if Danzup add the RC5 edit for LED version
All my program is for LCD huges edit in code to change to use LED
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Old 23rd March 2011, 04:30 AM   #512
tzya2 is offline tzya2  China
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Quote:
Originally Posted by FarmTech View Post
Hi David,
I think its faster if Danzup add the RC5 edit for LED version
All my program is for LCD huges edit in code to change to use LED
RC5 edit for LED version, the control PGA2310, good, very grateful
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Old 24th March 2011, 11:10 AM   #513
danzup is offline danzup  Romania
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Quote:
Originally Posted by FarmTech View Post
Hi David,
I think its faster if Danzup add the RC5 edit for LED version
All my program is for LCD huges edit in code to change to use LED
I will do this in the future , but wait for it .
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Old 24th March 2011, 12:17 PM   #514
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Thanks Danzup, I am looking forward to trying your updated firmware.

Dave
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Old 25th April 2011, 02:25 PM   #515
viki_v2 is offline viki_v2  India
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Hi tvicol
I have downloaded gerber and all other files from website. I will etch the boards in few days.
Kindly give information as how to get it working after assembling the board
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Old 25th April 2011, 04:00 PM   #516
tvicol is offline tvicol  Romania
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viki_v2,

The document is over 50MB and due traffic limit on my website I can not share trough this forum, please mail me and I'll give you the link.

Regards,
Tibi
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Last edited by tvicol; 25th April 2011 at 04:03 PM.
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Old 6th May 2011, 07:39 AM   #517
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Guys, great job,
but you're using R2R linear attenuator.

Please check this topis about logarithmic attenuator with constant impedance. There should exist calculator too:
Constant impedance relay-resistor logarithmic attenuator
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Old 6th May 2011, 07:54 AM   #518
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Default T attenuator

stefan, how much resistors and relays we have to use to get attenuation from 0dB to -127dB at 1dB step?
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Old 6th May 2011, 08:04 AM   #519
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Here is example of 6 bit (64 steps) attenuator calculated by me.
It is differential, because it was for Aleph-P, but you can use onle half of this for one channel.
Click the image to open in full size.

The attenuator is for 600 ohm output impedance, for input it's too small and it must be recalculated.

Last edited by stefan; 6th May 2011 at 08:08 AM.
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Old 6th May 2011, 08:08 AM   #520
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...not bad
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