This is the overall schematics view without power input. Here is a GNSS module UBLOX MAX8M that sends location to the µC stm32 the input bytes are stored then in the W25Q flash storage with the temperature bytes getted from the LM75 sensor. After it send via LoRa to the ground station.
Here is the input power part. It consist of 2 parts, the USB mini for easy use and pico blade connector. In the flight power supply will be provided from the molex 1x4 connector through the LD1117* LDO that will convert voltage into 3.3V.