Unfortunately the Kickstarter campaign to create the Raspberry Pi HDMI input board has been put on hold due to limitations previously unknown with regards the Raspberry Pi hardware. The developer responsible for the crowdfunding campaign explains a little more about the restrictions of the HDMI input port on the Raspberry Pi OS.
Why it is not possible for a Raspberry Pi HDMI input board to be created?
“After I have started this project it was brought to my attention, that the Broadcom BCM2835 processor is only designed to take the video input from an image sensor as used on the camera board. The integrated video processor in the BCM2835 performs video processing functions specifically for these type of sensors, so it creates a clean video. The HDMI input chip already creates a clean video. As the video processing for the camera cannot be disabled at this time, a clean video cannot be interfaced to the serial camera interface (the MIPI/CSI connector). This is a show stopper. After further investigations I have concluded that this cannot be overcome. At this point of time it is not possible to get the video from an HDMI input via the CSI interface into the Raspberry Pi. Unfortunately the Raspberry Pi is not architected for such an application.
Raspberry Pi enthusiasts looking for a way to record HD video footage from their Raspberry Pi mini PC might find this new Raspberry Pi HDMI input adapter a useful addition to their hardware. The new Raspberry Pi HDMI Input board has been specifically designed to support video capture from external cameras and allows you to connect HD camcorders, DVD players, desktop or notebook PCs and even games consoles such as Microsoft’s Xbox or Sony’s PlayStation to your Raspberry Pi.”
Below is information on the Kickstarter Raspberry Pi HDMI input board project which has now been put on hold. If you know any more information regards using a Raspberry Pi HDMI input please do leave your thoughts in the comments below.
The new Raspberry Pi HDMI Input Video Capture Module is available in three versions: basic, loop through and deluxe and connects to the Raspberry Pi with three connectors. A 26 pin GPIO connector, 8 pin digital audio connector and 15 pin FPC cable into the CSI camera connector.
The Raspberry Pi HDMI Input project is currently over on the Kickstarter crowd funding website looking to raise enough pledges to make the jump from concept to production. Features of the Raspberry Pi HDMI Input Video Capture Module include:
– HDMI video input (converted to MIPI/CSI for the Raspberry Pi camera interface)
– HDMI embedded digital audio (stereo) to I2S bus of the Raspberry Pi
– resolution up to 1080p
– 256 byte programmable EDID memory
– video timing analyzer
– connects to Raspberry Pi with 15 pin FPC cable (included)
So if you think the Raspberry Pi HDMI Input board is something you could benefit from, visit the Kickstarter website now to make a pledge and help the device become a reality. Read out essential guide if you are interested in Raspberry Pi displays and HATS.