Under $200. Single 2S LiPo battery. Readily available parts. Programmable flight control via Python.
Take the eduMIP and hook it up with the DSTR app in order to control the Mobile Inverted Pendulum from your very own cell phone!
An extensible low-cost open platform for learning embedded control & robotics in multithreaded Linux. Runs ROS, Python, Simulink, LabVIEW.
Graphical Systems Design approach to controlling the Renaissance Robotics eduMIP with LabVIEW