Hobbypower Mavlink-osd V2.0 On-screen Display Minimosd for Aiop APM Telemetry Atmega328p MAVLink-OSD is an Arduino based project and it is fully compatible with original 3DR MinimOSD This board can be used for CRIUS AIOP / Arduflyer / ArduPilot-Mega. MAVLink-OSD with switching DC-DC stepdown power supply to maximize efficiency on power system. No more heating problems when using this OSD board. It can be only use two way power source. Default firmware is original, but we suggest to use MinimOSD-Extra firmware