R-G LED 24V DC 16/7 mA geimeinsame Kathode ansteuern

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hallo zusammen!

ich würde gerne diese r-g led 24v dc 16/7 ma mit geimeinsamer kathode über das arduino steuern.

http://www.conrad.at/ce/de/product/394615/led-signalleuchte-mehrfarbig-rot-gruen-24-vdc-rotgruen-167-ma-signal-construct-smfe30224/shop_area_17640

mit einer gemeinsamen anode wäre es ja kein problem dies über 2 transitoren zu steuern. z.b.

http://www.conrad.at/ce/de/product/155782/transistor-bipolar-korea-electronics-bc517-npn-gehaeuseart-to-92-ic-500-ma-emitter-sperrspannung-uceo-30-v/shop_area_37318

probiert habe ich es auch schon mit einem optokoppler, leider vergebens, der ist mir dann gleich kaputt gegangen...  :smiley-roll:
(es war ein vishay sfh619a)

kann mir bitte einer von euch profis bei einer einfachen lösung behilflich sein?

danke!

gruß martin

hi,

bin kein fachmann, aber könnte man das nicht einfach über einen uln2003 ohne weitere teile lösen?

gruß stefan


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