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http://vivara.net.nyud.net:8090/blog/?p=24
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http://www.giangrandi.ch/electronics/dcf77/interface.html
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http://www.captain.at/electronic-atmega-dcf77.php
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http://www.lextronic.fr/sollae/ezl50.htm
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http://sitelec.free.fr/cours2.htm
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http://sjeffroy.free.fr/GBF/gbf.html
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http://www.gumstix.com/index.html
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http://users.rcn.com/carlott/nixie_in-17/index.html
Advanced AVR programming (timers,interrupts..)
http://members.shaw.ca/climber/avr.html
Alim +15 - 15 ajustable basé sur un LM317
http://www.aaroncake.net/circuits/supply3.htm