SPI is better than I
2C for this type of board, but it's not clear to me which one it is.
They say SPI on the video, yet the technical details lists it as
Interface: SPI (SCL, SDA, CS and Reset)
Those are I
2C names, not SPI. SPI would be named SCLK, MISO, MOSI, /SS. Although you could argue that it has the needed signals: clock, data, and chip select. And reset is neither a part of SPI nor I2C specs.
In the picture on the breadboard, the silkscreen clearly has I
2C names.
Finally, the 4D board here from sparkfun (
https://www.sparkfun.com/products/11676) seems like a decent board, and it has so much more, at about $10-12 USD more than one from their Kickstarter campaign. Perhaps the Kickstarter guys are trying for a simpler breakout board, with text and simple graphics primitives only. The 4D board has a local SD card for images that can be recalled for menus, buttons, adds local storage, and sounds, and these don't need to be transferred across the serial link once stored.
I am not saying one is better than the other. If all you need is simple text and graphics than perhaps the Kickstarter board will be ok, but it might be slow with any graphics heavy menus, unless it has decent drawing primitives built-in.
OLED can be about $40 USD in one-offs, and all you get is a bare display. If this campaign can get enough momentum to deliver a low-cost OLED display to the masses by sourcing directly from China in production quantities, and passing that savings onto the backers, then I think that it will have filled a needed niche.
I might buy one (if it's really SPI
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/wink.gif)
)
At least it's simple enough that I have confidence that this is one project that has not bit off more than they can chew, and actually has a chance of delivering something.