Hi The DC/DC converter does not power the ATmega, so it is only a question of powering the SN75176, the LED's, the 6N137 - and whatever power that might be sued on the DMX bus. I have seen other shematics use a 1W converter - and that is also what I have by hand right now. I know about Reichelt, but...

Hi Sorry for writing in English - but I am better at writing in English than German (even though I can read and understand most German text). I am trying to convert the schematic for the DMX-512 interface to include some components in SMD. But taking a close rlook at the schematic, I see that the DC...