Delft Aerospace Rocket Engineering (DARE) is a student rocket society, currently aiming to retake the European altitude for student-built rockets. To do this, we are making Stratos III, the next flagship rocket of DARE to launch in July 2018.
With a great rocket, must come great electronics. To retake the altitude record and recover useful data, it is essential we can seperate the nose cone with the electronics and payloads, and deploy the drogue and main parachute, so it will have a safe descent to the ground.
In the nose cone we have the flight-computer, which gathers and stores a lot of data from different sensors, and communicates with the ground station. It is a stack of PCBs that we are now designing and testing. One such PCB from the stack is the Recovery Board, which will drive the wire-cutters used for stage separation, and to drive the valve of the drogue chute. It does this based on the state and altitude of the rocket.