Operation Steps

•

Connect OSD Character Overlay Module to FireBeetle-ESP32 according to the connection diagram

and turn on the OSD dial switch (D3 at here).

•

Connect camera and display to OSD Character Overlay Module according to the connection

diagram.

•

Connect FireBeetle-ESP32 to PC with USD wire and open Arduino IDE, download and run examples

of DFRobot_OSD library.

NOTE: cs variable is chip select pin and it must be respond to dial switch. E.g. Dial switch D3

respond to IO26 of FireBeetle-ESP32. Here the CS is D3.

EEPROM Character Library

the first page of EEPROM: the first character address is 0x01