DFRobot FireBeetle ESP32-E Manual page 33

7.6 GDI
This is a DFRobot special GDI display interface. It can be conveniently connected to a screen with 18pin-FPC cable, easy to get started.
The pin list for GDI:
FPC PINS
VCC
FireBeetle M0 PINS Description
3V3 3.3V