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phet.colorado.edu/sims/html/circuit-construction-kit-dc-virtual-lab
www.clio.me/se/amnesportaler/teknik/
hospedagogen.com/lektionsplaneringar-och-ovningar-for-bbc-microbit/
makecode.microbit.org
www.skolverket.se/undervisning/grundskolan/
www.google.com/search?q=servomotor&tbm
www.google.com/search?q=trafikljus
www.google.com/search?q=elektroniska+komponenter
www.google.com/search?q=resistor&tbm
www.eon.se/om-e-on/energikaellor/vindkraft.html
www.sagitta.se/index.php
www.google.com/search?q=reglerteknik&safe
www.youtube.com/watch?v=byYNei7FGmE
classroom.google.com/w/NjI1MTE3MjM2NDZa/t/all
www.youtube.com/watch?v=Nn9M-ojA1yg
www.youtube.com/watch?v=iuoUU2TqVoc
www.youtube.com/watch?v=8oou5RwjcBg
www.google.com/search?q=IC555