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Old 12th October 2012, 08:27 AM   #41
Dagwood is offline Dagwood  New Zealand
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Ok, had a rumage in the boxes of bits, now have a new set of transistors.

The mute function now works if pin 10 is shorted to 0v

Thanks for the offer of a code change but I dont have any spare buttons on the remote, only have Volume + & - and the mute. All other are used by the CD player

Cheers
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Old 12th October 2012, 08:29 AM   #42
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Quote:
Originally Posted by Dagwood View Post
Could it be that I have used BC546 rather than MPSA06?
No, BC546 is OK. Simply Emiitter and Collector leads are inverse in MPSA06, check it please.
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Old 12th October 2012, 08:38 AM   #43
Dagwood is offline Dagwood  New Zealand
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Yes all is working fine, BC546, fitted inverse

Could pin 3 be triggered "On" with just a time delay of a few seconds rather than a pysical button push on the remote?
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Old 12th October 2012, 08:57 AM   #44
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Quote:
Originally Posted by Dagwood View Post
Ok, had a rumage in the boxes of bits, now have a new set of transistors.

The mute function now works if pin 10 is shorted to 0v
OK, that's fine .
Quote:
Thanks for the offer of a code change but I dont have any spare buttons on the remote, only have Volume + & - and the mute. All other are used by the CD player

Cheers
Now drop me a link to post you - within half an hour - a modified program code to solve your problem. Actually i will remove the "Inhibit MUTE" command if "STBY mode" exists.
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Old 12th October 2012, 09:19 AM   #45
Dagwood is offline Dagwood  New Zealand
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Thanks Fotis

Email sent

You are a star
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Old 12th October 2012, 09:30 AM   #46
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Quote:
Originally Posted by Dagwood View Post
Yes all is working fine, BC546, fitted inverse

Could pin 3 be triggered "On" with just a time delay of a few seconds rather than a pysical button push on the remote?
If "pin 3" you mean the output for MUTE relay, it is automatically triggered - for a while - during power-up to prohibit audible thumbs from power supply.
OK, the modified HEX file is ready for you, i've programmed P16F88 with MPLAB ICD-2 to be sure that is working, and is working just fine on my test board.
Unfortunatelly i can't upload it on diyAudio forum because does'nt accepts HEX files. Also in Matrix Multimedia forum because my moderator duties, and this is a custom HEX file for you.
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Old 12th October 2012, 09:51 AM   #47
Dagwood is offline Dagwood  New Zealand
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Hi Fotis

Thank you so much for the revised code

It works perfect, will try to get it ftted to my per-amp tomorrow for final testing

Thanks again

Dagwood
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Old 12th October 2012, 10:47 AM   #48
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Quote:
Originally Posted by Dagwood View Post
Hi Fotis

Thank you so much for the revised code

It works perfect, will try to get it ftted to my per-amp tomorrow for final testing

Thanks again

Dagwood
My pleasure Dag
I feel happy to offer my help in other people, and more happy when my help is useful on actual projects.
Cheers
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Old 12th October 2012, 11:09 AM   #49
fotios is online now fotios  Greece
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Default Custom Remote Control Handset

For whichever is interested to build his own Remote Control Handset, here the link of a whole article:Matrix Multimedia user forums • View topic - Remote Control Handset "1"
It is implemented around a PIC16F1827, one of the recently launched micros of Microchip. This micro together with PIC16F1829 includes the new Data Signal Modulator (DSM) module, that is very useful for remote control handsets offering up to 32MHz carrier frequency. Its cost is some big at 7.5 Euro (you can buy from e-bay ready RC5 remote control handsets of Philips for just 6.5 Euro cluttered from tenths of useless buttons!) but is a DIY project .
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Old 13th October 2012, 02:06 AM   #50
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A year ago I would have been real interested in this remote volume control, and I appreciate the generosity of the code writer. In the last year I found that I can bluetooth 16 bit stereo digital wirelessly from my smartphone to my main stereo system in my living room. The Bluetooth receiver I bought for $20 from Parts Express in Ohio works pretty good, and only needs a 5 volt power supply or handy USB port to tap off of. I think that may be the future of front end sources, and my phone has volume, EQ and the mute function. The digital files don't have to be mp3. I have a bunch of mp3 which was given to me, as well as my own stuff that is all wav files without compression. Not super highend really, but pretty darn good. All my CD's are 16 bit... It's difficult to find the bluetooth recievers on the Parts Express website, but they are there. They don't tell you, but if you drive 32 ohm headphones directly with the bluetooth receivers (they say it can), they have a bunch of hash noise for some reason. Drive into 500 ohms or above and I didn't hear any noise at all. Feed it into an aux in on your preamp. Like most cheap Chinese stuff, the included instructions are very minimal.
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