Version 3.0.0-RC2

This is the feature complete version 3.0.0. Additional testing is required to ensure all features are performing as expected.

Change list

• Move all firmware projects to PlatformIO
• [FC/GS] Added faulty calibration error
• [FC/GS] 16 character link phrase
• [FC] Added testing button
• [GS] Implemented sensor panel
• [GS] Added magnetometer calibration for rocket tracking
• [GS] Added bootloader setting
• [GS] Added firmware version