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[Theoretical] HDMI to Compsite adapter?

xxmememanxx
By xxmememanxx
in Hobby Electronics
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So, I saw a video online about how to export composite video using an arduino. If I could get an HDMI signal into the board, could I then somehow convert it? I  just wanted to know, since making one of these from scratch would be really cool for me.

 

 

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does arduino have such a hardware decoder for that kind of thing ? you are trying to use an arduino basically as an HDMI to composite converter ?

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Just now, DnFx91 said:

does arduino have such a hardware decoder for that kind of thing ? you are trying to use an arduino basically as an HDMI to composite converter ?

yes. do you think it would be possible?

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1 minute ago, xxmememanxx said:

yes. do you think it would be possible?

honestly im kinda out of my depth with these kind of hobby electronics, but this looks like pretty much what you are trying to do

 

http://www.instructables.com/id/TV-Out-with-Arduino/

Home PC:

CPU: i7 4790s ~ Motherboard: Asus B85M-E ~ RAM: 32GB Ballistix Sport DDR3 1666 ~ GPU: Sapphire R9 390 Nitro ~ Case: Corsair Carbide Spec-03 ~ Storage: Kingston Predator 240GB   PCIE M.2 Boot, 2TB HDD, 3x 480GB SATA SSD's in RAID 0 ~ PSU:    Corsair CX600
Display(s): Asus PB287Q , Generic Samsung 1080p 22" ~ Cooling: Arctic T3 Air Cooler, All case fans replaced with Noctua NF-B9 Redux's ~ Keyboard: Logitech G810 Orion ~ Mouse: Cheap Microsoft Wired (i like it) ~ Sound: Radial Pro USB DAC into 250w Powered Speakers ~ Operating System: Windows 10 Enterprise x64
 

Work PC:

CPU: Intel Xeon E3 1275 v3 ~ Motherboard: Asrock E3C226D2I ~ RAM: 16GB DDR3 ~ GPU: GTX 460 ~ Case: Silverstone SG05 ~ Storage: 512GB SATA SSD ~ Displays: 3x1080p 24" mix and matched Dell monitors plus a 10" 1080p lilliput monitor above ~ Operating System: Windows 10 Enterprise x64

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4 minutes ago, xxmememanxx said:

yes. do you think it would be possible?

possible? maybe but is it worth it when you can have a HDMI to composite converter for 10 bucks ?

 

i assume you would need to do a lot to get HDMI into the arduino. 

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  • 2 weeks later...
Posted

Arduino is far too slow for HDMI decoding; you need a decent FPGA to get anywhere close. Might be possible with a raspberry pi or similar as this has the DAC etc for composite output already but I'm not sure if you'd get HDMI in easily.

 

Unless you're looking for a project it'll be cheaper to buy a commercial product.

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