If you look on Digikey, the best you can do is about 3-4 inches it seems. So for very simple stuff e.g. I want to add a basic non-volatile display to some sensor I've hooked up to a microcontroller, there aren't many easy options.
If you look on Digikey, the best you can do is about 3-4 inches it seems. So for very simple stuff e.g. I want to add a basic non-volatile display to some sensor I've hooked up to a microcontroller, there aren't many easy options.
The fact that this is much harder than it seems (hardware is non-mainstream, access to documentation is limited, support is very hard to get, displays need special driving chips) actually prompted us to provide a development platform for E Ink. It took us years to figure everything out and for somebody wanting to prototype something this is a show stopper.
As far as pricing goes, the 6" panels are priced approachable, while the large displays still need to hit the mass production price points. Obviously if you buy from us in bulk we can provide you much better pricing than a price for a development kit, but E Ink is not cheap.
I think what it comes down to for me, is I am not buying a dev kit to get hooked into an ecosystem that I don't have really clear pricing on. Which is really to bad. I think if you had a cheaper wifi only 6" model that people could afford to throw away money on just to test ideas out, then you would get way more people interested.