Will solder myself for cost saving$
Why not offer pre-soldered for x$ and in a kit for for some amount <x$
After a bit of investigating, I'm finding a supplier of the 9 pin mini DIN sockets at a good price difficult. I don't think this will reduce prices significantly over a SCART, but it would make things smaller. I also feel if I supply the board with a SCART socket I don't need to supply a cable, which would overall reduce cost. I'm also switching from a barrel jack for power to a micro B USB socket. Again that reduces footprint, manufacture cost and the need to ship with a region specific PSU.
I'm also considering dropping out the RGB potentiometers for fixed resistors.
After a bit of investigating, I'm finding a supplier of the 9 pin mini DIN sockets at a good price difficult. I don't think this will reduce prices significantly over a SCART, but it would make things smaller. I also feel if I supply the board with a SCART socket I don't need to supply a cable, which would overall reduce cost. I'm also switching from a barrel jack for power to a micro B USB socket. Again that reduces footprint, manufacture cost and the need to ship with a region specific PSU.
I'm also considering dropping out the RGB potentiometers for fixed resistors.
Micro-USB for power? It's difficult to find USB power supply with more than 2 A output current, so it will be difficult to give enought juice for NeoSD for exemple.
And for RGB you should use a RGB buffer in order to have standardised output voltage and impedance (1V cc at 75Ω).
I'd be interested in one if I could connect it to an NTSC TV (not sure if this is a non starter in terms of price/complexity).
How much additional current does the NeoSD draw?
As of USB 3.1 spec it's now more common to find 3A wall warts. The official Raspberry Pi PSU would be a good option. If I were to include a world wide adaptor in the package it's easier to source for sure.
Great point on the impedance matching. I'm going to spend some time investigating watch options are available.
If it has RGB inputs it should be fine.
Yeah. External scart converters really make this a non-issue.Which most American NTSC TVs don't. The NTSC folks in here would have to use an RGB monitor or obtain a video converter, RGB SCART in and composite/s-video/component out.
How much additional current does the NeoSD draw?
As of USB 3.1 spec it's now more common to find 3A wall warts. The official Raspberry Pi PSU would be a good option. If I were to include a world wide adaptor in the package it's easier to source for sure.
Great point on the impedance matching. I'm going to spend some time investigating watch options are available.
A 2.1/2.5mm barrel jack would be preferable as it greatly increases your power supply options. I'd opt for 3A at the minimum but quality of the supply should be the utmost focus.
Ultimately someone will want to enclose this and really the only thing required to speed that process up would be to have the DB15's pre mounted and leave the rest as breakout solder points. It would make it much cheaper to produce and far more customisable.