MinimOSD Hardware Modifications:
Here you see possible hardware mods which allow you to measure variables with the Minim OSD which it was not designed to do.
Soldering to the tiny pins on the ATmega328 is very difficult and requires good soldering skills! Do not attempt unless you feel confident in your abilities.
Mod example:
For main voltage:
For video voltage:
For RSSI from RC reciever:
For Current Sensor: