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I want to hook up a small e ink screen to a pi and use it with my mechanical keyboard as a modern typewriter of sorts but the prices on eink are so prohibitive it doesn’t seem worth it.

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https://shop.pimoroni.com/products/inkplate-6 (800x600) seems ok for £99 (~$135) although it has its own embedded processor. Or you can get the slightly lower res https://shop.pimoroni.com/products/inky-impression-4 (640x400) with colour for £48 (~$65)

£99 for a 800x600 monitor is exactly what I mean when I say eink is price prohibitive and not worth it.

I have an Inkplate 10. I like it, but it's not a regular monitor, it doesn't have any standard ports like HDMI. Displaying an image from the SD card takes multiple seconds.

The response time is what makes devices like this kinda annoying.

Do you say that from experience? I have both a Dasung Paperwhite monitor and a fairly hacked reMarkable 1 that I use for that purpose. Both work well for typing, as long as you type in a way that full refreshes are the exception, not the norm.

For text-based interaction, current-generation E-ink is more than suficient.

Source: Own an Onyx BOOX Max Lumi and use it in this mode frequently.

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