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Old 21st September 2013, 12:33 AM   #1
koogar is offline koogar  United Kingdom
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Default PC USB volume controller

Hi guys

Its been a while since I have posted on the forums but I thought I would just post some pics of my latest project as it may be of interest to some of you.

It sure wont please the audio purists

the project is an ATTINY V-USB based volume control.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.


If there is some interest I will post the design files ETC so we can have a play with it

PS you can read more regarding the project on my blog

Cheers

Rupert

Last edited by koogar; 21st September 2013 at 12:43 AM.
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Old 21st September 2013, 02:09 AM   #2
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One of my projects was a 6 channel USB PC controlled mixer with volume and tone controls on the PC screen and everything via USB bus.
The first attempt was rubbish with a very noisy output.
A better pcb sorted that tout with no ground loops and a power supply that was separated from the rest of the circuit.
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Old 21st September 2013, 02:13 AM   #3
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Koogar
Can u add schematic,PCB and program to AVR
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Old 22nd September 2013, 12:36 PM   #4
koogar is offline koogar  United Kingdom
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Quote:
Originally Posted by kulamario View Post
Koogar
Can u add schematic,PCB and program to AVR
Just need to clean the schematic up first

Rupert
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Old 25th September 2013, 06:48 PM   #5
koogar is offline koogar  United Kingdom
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Hi Guys

I have uploaded the firmware and the Eagle files

Firmware/Eagle

The Firmware is based off the project example on the V-USB website.

I was thinking about using the spare I/O pins for an RGB LED or maybe expand the functionality to include Infra Red remote control of the volume also.

Although if a WS2812 RGB LED is used (AKA Adafruits neo pixel) only 1 pin is required.

There is a usb remote based on the ATTINY84 here

I have to say am new to AVR's so the above additions is probably beyond my skills at the moment.

If you do build my example please post the results here

Cheers

Rupert
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Old 14th October 2013, 03:38 PM   #6
Wungun is offline Wungun  Canada
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Looks a lot like my Griffin Powermate!
Nice work

Click the image to open in full size.


Sent from my iPhone...
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Old 17th December 2013, 03:50 PM   #7
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Dear koogar!

Could you upload the source code or the hex file for the Attiny 24 version, please?

Thank you!
kerekajt
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