FlightGear Flight Simulator: free open-source multiplatform flight sim
A planetarium software that shows a 3D simulation of the night sky
IEC 60870-5-104 protocol tester.
Arduino Focuser, fully ASCOM complaint
Free ladder & sequential (grafcet) languages used on automation PLC
C API to control NexStar compatible telescopes
Open source observatory control software
instrument control, data acquisition display and analysis
Cross platform Perl API to control NexStar compatible telescopes
Land survey field crew data management for .RAW and .JOB file types.
Quadcopter Remote Control by RaspberryPi
Another HMI/SCADA set of tools written in C++(Qt) with python bindings
Control your computer with an IR remote
Real-time data acquisition and visualization software