Difference between revisions of "Turntable USB interface"
From Organic Design wiki
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| + | *[http://wiring.org.co/learning/tutorials/diagrams.html AVR diagrams] (good) | ||
*[http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply Custom power supply project] | *[http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply Custom power supply project] | ||
Revision as of 22:44, 28 January 2007
I would like to retro-fit my 1970's pioneer turntable to be able to record onto a iPod or other USB device.
Contents
Operation
- Plug in USB stick or iPod
- Press record-pause
- Place stylus on a chosen track
- Signal level threshold trigger changes to record when the stylus hits the record
- Sound file is written onto the device
- Signal level threshold trigger stops recording after a few seconds pause (manual pause provided also)
Systems
- Power supply
- Analogue phono stage (requires ±12V DC)
- Stepdown power supply to give 5V± 3A from the main turntable transformer
Microcontroller
- Arduino NG AVR microprocessor board
Features
- ATmega168 AVR processor
- Digital <-> Analogue converter
- C library and compiler supplied as open source
Operating system
- gcc, libc supplied and open source
- No real operating system required
- svn tree
- bootloader supplied and open source
- Program to modify iPod's XML playlist file to add the newly created track to the playlist
