Overview
This is HDMI to CSI Camera Adapter which is designed for Raspberry Pi with up to 1080p@30fps support from HDMI input, backward compatible.
It allows you to use HDMI cameras just as the standard Raspberry Pi CSI cameras, and it is compatible with Raspberry Pi 4B/3B+/3B/2B/3A+/Pi Zero/Zero W/Pi Zero WH/Pi Zero 2W,etc.

Specifications

Chip: TC358743XBG

Input Signal
Video: HDMI1.4, RGB888, up to 1080p@30fps support
Audio: HDMI

Output Signal
Video: 2-lanes MIPI CSI-2
Audio: I2S audio output, LPCM audio stream format

Operating System: Raspberry Pi OS 32bit
Operating Voltage: 3.3V
Operating Temperature:-30 ~ 70°C

Connection

1. Video
Connect the FPC cable of Raspberry Pi to the CSI interface of Raspberry Pi. The CSI interface of Pi 2B, 3B, and 3B+ is located between the LAN port and HDMI port. The CSI interface of Pi 4 is placed between the HDMI1 interface and the audio jack.
If you use Pi zero, the CSI interface is beside the Power port.
Note that the silver side (metal side) should be toward the HDMI interface. Release the black buckle, align the FPC cable, and insert it tightly, then close the black buckle.

2. Audio
To use the audio, you need to jumper wire the following GPIO to the I2S pins of the Raspberry Pi board.
HDMI to CSI ---Raspberry Pi
WFS---(PIN35) GPIO19
SCK---(PIN12) GPIO18
SD ---(PIN38) GPIO20
GND ---GND

Package Content
HDMI to CSI Adapter x1