David offers an excellent solution through a cap product over on Falcon Christmas.
http://pixelcontroller.com/store/index.php?id_product=47&controller=product
Can I get one in South Africa in the next 72 hours?
Otherwise, back to the original question - I would like to output DMX directly to the UART on the Raspberry Pi and have it go out BCM 14 (or wherever).
The main challenge of course is that the Raspberry Pi's UART doesn't have a native setting for 250 kbps, but the guy below was able to do it, so was wondering if FPP provides something like this:
https://www.raspberrypi.org/forums/viewtopic.php?t=63057