You can think of the Micro OSD as a MinimOSD that is resilient against voltage spikes so you don't have to worry about your OSD going black anymore. Not only that but it consumes less power than a traditional MinimOSD and has twice as much character memory.

This is all possible thanks to a hardware design that includes two low drop out voltage regulators and instead of a MAX7456 OSD chip (used don MinimOSD boards) an improved version called "AB7456". The AB7456 chip uses less power, is tolerant of wider voltage swings and twice as much vram than the commonly used MAX7456 chip.

The pre-loaded firmware only works for MWC / CF / BF / RF

Specifications

• ATmega328P with Arduino bootloader
• AB7456 instead of MAX7456 monochrome on-screen display, much lower power consumption
• FTDI cable compatible pinout
• LDO protected power supply, 5V LDO for MCU, 3.3V LDO for OSD Chip, both LDO are upto 40v tolerate (Operating Conditions is 4.5-6.5V)