Look into getting a LM 2596 voltage regulator . You can connect the power to the fan directly from your 10 V power source , and connect the voltage regulator between it and the Pi . That way , the power source will give 10 V to the fan , and 5 V to the Pi . I ' m doing that on my robot prototype ! <| sep |> I see your point . Unfortunetely Turkish people are still too religious , nationalist rather than rational when it comes to politics . They can ' t see the reality that Turkey is actually on leader or potantially leader position to these countries in the Central Asia and the Middle East . Economies of these countries based on natural r e s o u r c e s T o t a lnaturalresourcesrentsmap . svg . png which is distributed by their government . So this mostly fucks everything up . Instead we should see these countries as giant markets . We should buy natural sources and sell them after processing with our mighty industry in Western Turkey . On the other hand European Union will never accept us , so we shouldn ' t try any further . We just reached 80 million population unofficially while many European countries actually shrinking . We are too big , too poor and most importantly not enough Europeans to be part of their club . So better say Adis Amigos .