#navi(arduino); *Photocoupler [#zc424261] **[[使い方>http://japan.renesas.com/products/opto/technology/usage/]] [#y67700a9] --EL817C PC817 ---http://elecfreaks.com/store/download/datasheet/breakout/Relay/EL817.pdf ---%%http://www.everlight.com/datasheets/EL817.pdf%% ---http://www.everlight.com/datasheets/EL817.pdf --toshiba ---http://www.semicon.toshiba.co.jp/download/docs_pdf/BCJ0034_catalog.pdf ---https://www.marutsu.co.jp/data/TLP523.pdf