Use cheap STM32 development board with arduino
http://www.ebay.com/itm/291693366485?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT Set jumpers like on picture!!! Connect to any USB-Serial Board USB-ser STM32 RX — A9 TX — A10 GND — G... »