SUBJECT TO CHANGE
Northstar V3 is a complete overhaul onto the previous versions that I had made. Instead of taking the design and iterating on them, I decided to restart from scratch, not only to make sure that fundamental issues are dodged, but also to change up my method of schematic design into that of a hierarchical one.
The first major difference is the GNSS module. Initially I was using a GNSS module that required a separate antenna, but for space reasons, I found that the module I was using came in a model where the antenna is integrated, reducing the size of the module slightly.
The second difference is the different IMU and second accelerometer. This was done because the previous MPU 6050 is end of life (EOL), so I needed to find a replacement, the second is that the BNO085 module works as a coprocessor that automatically gives me gravity vectors and rotation quaternions without me having to do the math myself. The second accelerometer was chosen to add a form of redundancy to the system, as well as give a higher acceleration range of ±400G, which is useful when ejection charges go off.
The final major difference is the addition of six (6) servo channels. This is because I plan to eventually have active stabilization on my personal rockets, and possibly competition rockets, this was done by having a separate power supply for just the servos.