Wiring Assistance: GPS, magnetometer, 7 segment, OLED, and microSD with Arduino pro mini

[ruku]

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Wiring assessment: GPS, magnetometer, 7 segment, OLED, and microSD with Arduino pro mini

Hi everyone, I'm working on a portable project using an Arduino pro mini (Atmega328 3.3V 8MHz) that needs to: receive GPS and magnetometer data, process and display this data on 7 segment and OLED displays, save logs to a microSD card, and have few buttons to press. Since it's portable, I'm powering it with a single 18650 battery that is connected to RAW pin. I'm using a small DC-DC converter to 5V for MAX7219 and 7 segment displays. All other components are running from VCC pin. Below is my …

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