Thanks for support, Mr.Henrik !
When I switch to optocouplers, I changed code :
My "sources of inspiration" was here : http://www.panuworld.net/minidisc/fordsony/index.htm & http://www.fiatforum.com/marea/29682...-finished.htmlCode:case 1 ; volume down Portb.2=1 Pause 100 Portb.2=0




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