The following video shows the PiQuad quadcopter flying during the day and at dusk using visual contact aided by the FPV system (5.8 GHz analog downlink to receiver and displayed on tablet).
Unmanned Air Systems for Education, Research and Development
The following video shows the PiQuad quadcopter flying during the day and at dusk using visual contact aided by the FPV system (5.8 GHz analog downlink to receiver and displayed on tablet).
Robotics-in-Flight is developing a US made flight controller assembly.