All on-board functional modules are controlled by a Nexus5 motherboard running the Android OS, which enables more expensive control algorithms and a higher level of integration.
Some COTS parts of smartphones are also integrated as payloads, like a SD card, an industrial gyroscope and a 2-megapixel camera. Additionally, the Femtosat called Stardust is only 28 grams and equipped with four subsystems, which can achieve the basic function of a common satellite. Through inter-satellite separation, the Picosat was launched from “Tiantuo-3” satellite on September 20, 2015, and then the two Femtosats were released successfully. Though the design lifetime of the Picosat is 1 month, it has fully functioned well for nearly 1 year and the spatial wireless self-organizing network is still normally operating between the Picosat and Femtosat. More than 400 photos have been downloaded. The intelligence of this new PhoneSat architecture is proved, and the potential of flying in formation and fulfilling more complex missions is appealing.