https://pay.reddit.com/r/mylittlepony/comments/1ut74g/in_about_15_minutes_pri...
I work for an aerospace contractor, and about 6 months ago I was bored so I added Princess Luna to the silkscreen layer of a printed circuit board. Anyway, the device is going up on Orbital Sciences Orb-1 at 12:06 CST.
Mhm. Basicallly, a circuit board that measures temperature, varies the speed of chassis fans accordingly to minimize noise, and monitors the rotation pulses from the fans. If the fans fail or there's an overtemp, it throws an alarm and can shut down the device's large power supply in extreme conditions. It also reports this info over a link to the device's computer so the information can be accessed on the ground. It has its own power supply circuitry for interface directly to the station's systems so that if the device's power supply fails it will still keep the fans running and it can also shut off the device on overtemp without killing its own power source.
ATMega328P-AU, the TQFP32 version of the one used in the Arduino Uno. In fact, it runs the Arduino bootloader.
/me ушёл вставлять пасхалки с понями в свои проекты.