This E Ink Pen Holder Displays a New Quote Each Day

from hackster.io

Electronic paper, AKA E Ink, displays are amazing devices, capable of holding an image in place without the application of power. Unfortunately, their refresh rate tends to be quite low, and they are typically limited to showing shades of black and white, so their applications tend to be somewhat niche.

One place where such a display is really useful if when showing text that changes only intermittently, such as price data at a store, or as Hamed Taha demonstrates in his E Ink Pen Holder project, for revealing a quote of the day.

His build embeds a 3.7" E Ink screen inside of a pen holder made with epoxy resin, along with an ESP32 module for control. The result, so far, is a pen holder that can be updated using a cell phone and a wireless charger/receiver, and something that can hopefully be enhanced software-wise in the future

It’s a neat idea, and a concept that others may be able to take and “mold” to their own purposes. Of course, one hazard of working with such a permanent structure is that you can’t really fix things once the epoxy has cured. Taha went through several iterations, losing display and control hardware in the process, before producing a functional device.

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