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alec(at)alecmyers.com
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 Posted: Sun Dec 03, 2017 5:29 am Post subject: Constructing an automatic RCA video camera feed splitter |
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Hi Eric
what would work best for me is a prototype board mounted with a PIC ready for ICSP, but without the video chip, so that I can solder some test parts onto it. I don’t have any video sources or screens so when I’ve verified the PIC works I can send it back to you to check out the video.
On Dec 2, 2017, at 21:30, Eric Page <edpav8r(at)yahoo.com> wrote:
Beautiful. It looks like our mux design with a single positive supply should work fine. I'll get the ball rolling on a prototype, which I'll send to Alec to stuff with a programmed PIC.
Alec: Should I add a couple of PIC12F683s to my parts order, or do you already have them on hand?
Eric
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=476066#476066
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Eric Page
Joined: 15 Feb 2017
Posts: 245
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| Posted: Sun Dec 03, 2017 2:10 pm Post subject: Re: Constructing an automatic RCA video camera feed splitter |
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| alec(at)alecmyers.com wrote: | | What would work best for me is a prototype board mounted with a PIC ready for ICSP, but without the video chip, so that I can solder some test parts onto it. I don’t have any video sources or screens so when I’ve verified the PIC works I can send it back to you to check out the video. |
Sounds good; that's what I'll do.
I'm going to order parts first, as I want to measure the inside of the D-Sub backshell before I order PCBs. After looking at the 3D models of the backshell and PCB together, I don't think it's going to fit. It looks like the pin headers will be too tall and the PIC won't be able to be socketed. I'd like to use a right-angle DB-25 connector to lower the board and gain more vertical space, but there are only a few available with flanges to fit a backshell, and those start at $10.60 ea., versus $0.64 for the solder cup versions. Stay tuned...
Eric
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alec(at)alecmyers.com
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| Posted: Sun Dec 03, 2017 5:26 pm Post subject: Constructing an automatic RCA video camera feed splitter |
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why would you want to socket the PIC?
On Dec 3, 2017, at 17:10, Eric Page <edpav8r(at)yahoo.com> wrote:
alec(at)alecmyers.com wrote:
| Quote: | What would work best for me is a prototype board mounted with a PIC ready for ICSP, but without the video chip, so that I can solder some test parts onto it. I don’t have any video sources or screens so when I’ve verified the PIC works I can send it back to you to check out the video.
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Sounds good; that's what I'll do.
I'm going to order parts first, as I want to measure the inside of the D-Sub backshell before I order PCBs. After looking at the 3D models of the backshell and PCB together, I don't think it's going to fit. It looks like the pin headers will be too tall and the PIC won't be able to be socketed. I'd like to use a right-angle DB-25 connector to lower the board and gain more vertical space, but there are only a few available with flanges to fit a backshell, and those start at $10.60 ea., versus $0.64 for the solder cup versions. Stay tuned...
Eric
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=476074#476074
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