RocketAcademy writes "Arduino, the popular open-source microcontroller board, is powering a revolution in low-cost space-mission design. San Francisco-based Planet Labs, a spinoff of NASA's PhoneSat project, has raised $13 million to launch a flock of 28 Arduino-based nanosatellites for remote sensing. Planet Labs launched two test satellites this spring; Flock-1 is scheduled to launch on an Orbital Sciences Antares rocket in 2014. NanoSatisifi, also based in San Francisco-based company, is developing the Arduino-based ArduSat, which carries a variety of sensors. NanoSatisifi plans to rent time on ArduSats to citizen scientists and experimenters, who will be able upload their own programs to the satellites. The first ArduSat is scheduled for launch August 4 on a Japanese H-II Transfer Vehicle carrying supplies to the International Space Station. The cost of orbital launches remains a limiting factor, however. As a result, Infinity Aerospace has developed the Arduino-based ArduLab experiment platform, which is compatible with new low-cost suborbital spacecraft as well as higher-end systems such as the International Space Station. The non-profit Citizens in Space has purchased 10 flights on the XCOR Lynx spacecraft, which will be made available to the citizen-science community. Citizens in Space is looking for 100 citizen-science experiments and 10 citizen astronauts to fly as payload operators. To help spread the word, it is holding a Space Hacker Workshop in Dallas, Texas on July 20-21. Infinity Aerospace will be on hand to teach Arduino hardware and software."