FireBeetle OSD Character Overlay Module

An on-screen display module with AT7456E chip, offering character and time display functions. Supports NTSC/PAL, 16x30 character display, and SPI interface.

Video Signal InputOfficial table 2 row 1
RCA A/V_IN or PH2.0 IN
Type · digital io
Video Signal OutputOfficial table 2 row 2
RCA A/V_OUT or PH2.0 OUT
Type · digital io
OSD (On-screen Display) ControlOfficial table 2 row 3
SPI Interface
Type · spi
RSTOfficial table 2 row 4
Reset button of OSD chip
Type · digital io
D2-D5Official table 2 row 5
Chip selection is available with dial switch
Type · digital io

Pin	Position	Type	Function
Video Signal Input	Official table 2 row 1	digital io	RCA A/V_IN or PH2.0 IN
Video Signal Output	Official table 2 row 2	digital io	RCA A/V_OUT or PH2.0 OUT
OSD (On-screen Display) Control	Official table 2 row 3	spi	SPI Interface
RST	Official table 2 row 4	digital io	Reset button of OSD chip
D2-D5	Official table 2 row 5	digital io	Chip selection is available with dial switch

Start wiring

SPI

Confirm the data interface matches your host board.

Module pins: OSD (On-screen Display) Control. Schematik maps them to your board in the app.

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