# Paper array harvests indoor humidity to power a wireless keyboard

_Published Sunday, October 4, 2026 at 8:06 PM EDT · Science, Infrastructure · Latest · Tier 2 — Notable_

![Concept graphic of paper tiles pulling moisture from a room's air — Primary](https://assets.newatlas.com/dims4/default/19813e2/2147483647/strip/true/crop/1200x630+0+29/resize/1200x630!/quality/90/?url=https%3A%2F%2Fnewatlas-brightspot.s3.ap-southeast-2.amazonaws.com%2F3d%2Fcd%2F0aae3d80432da9e5ba2cac266f8b%2Fwallpaper-graphic.jpg&na.image_optimisation=0)

Binghamton University researchers demonstrated a paper array that powered a wireless keyboard by harvesting indoor humidity, with help from a capacitor that stores charge and releases it in bursts. The proof of concept, described in Advanced Energy Materials, used 1,596 tiles and delivered 3.5 V at roughly 38% humidity.

The tiles draw moisture into their edges and release vapor through their centers. That flow creates an imbalance in hydrogen ions, which graphite electrodes collect as current. A separate 35-tile array ran a humidity sensor for about 15 minutes.

The researchers target sensors and wireless modules. The keyboard demonstration supplied no total power figure, and durability remains a condition for practical use.

## Sources

- [New Atlas: Technology-Innovation-Outdoor News](https://newatlas.com/materials/binghamton-wallpaper-humidity-energy/)

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Canonical: https://techandbusiness.org/newswire/Ta2zv7JIILTtkwyos6gA1w
Published: 2026-10-05T00:06:13.216Z
Story chronology: 2026-10-04T23:00:00.000Z
Retrieved: 2026-10-05T01:37:34.044Z
Publisher: Tech & Business (techandbusiness.org)