Micro HDMI to RCA conversion

Flexo55

Hi, I am not sure if this belongs here or in general discussion to please forgive me if I posted in the wrong section. Here is my current setup:

Pi model: Raspberry Pi 5
Power Supply used: Official Raspberry Pi 5 power supply
RetroPie Version used: 4.8.8
Built from: Official RetroPie Image, Raspberry Pi 5, Raspberry Pi OS LITE 64 bit.
USB Devices: Currently only a wireless keyboard.

I am looking into buying either a Micro HDMI to RCA cable or using a Micro HDMI to HDMI with a HDMI to RCA converter to play on a CRT tv. I read some of the other topics regarding this but they were a few years old and on earlier Pi models. Is this something that will work without modification? The other topics mentioned going into config.txt and I am not sure how to do that (yet). Would like to to know ahead of time to avoid frustration if it is not currently possible.

Thank you!

Lolonois

@Flexo55 Sure it is possible. Just think about your requirements.

Which input formats (16:9, 4:3, 5:4, ...) and resolutions (1920x1080, 800x600) should be accepted on the HDMI side?
Which output standard should be supported? (NTSC/PAL or both?)
Which framerate you need for your CRT (50Hz/60Hz/...)?
Shall it support conversion options when converting e.g. from 16:9 (in) to 4:3 (out)?
Do you also want HDMI audio looped through the device or will you use the Pi's headphone jack or USB audio?
Do you want extra filters supported by the device, e.g. blurring, scanline modification, ...?

This might be one device as example: https://www.startech.com/en-ch/audio-video-products/hd2vid2 (obviously you need a Micro HDMI to HDMI adapter)

I would also ask or research in some AV forums on recommended products for your project and your requirements.