PaperDeck

A cardholder
with an
e-paper screen.

Your loyalty barcodes, boarding passes, and notes — on a screen that's readable in direct sunlight and lasts weeks on a charge.

Launching on Kickstarter Nov 6, 2026. No spam, one email when it goes live.

PaperDeck front view, home screen on the e-paper panel. KeyShot render, not final.

Legibility

Readable where
screens aren't.

E-paper reflects light instead of emitting it. In direct sun it gets easier to read, not harder. Hold it up at the checkout and the barcode scans off the panel.

sunlight.jpg — direct harsh sunlight, panel legible

What it shows

Six faces, one panel.

PaperDeck Home screen, UI mockup

Home

The default face — today's date, next event, battery.

PaperDeck Loyalty cards screen, UI mockup

Loyalty cards

Scan the barcode straight off the panel.

PaperDeck Tickets screen, UI mockup

Tickets

Boarding passes and event QRs, ready before you reach the gate.

PaperDeck To-do screen, UI mockup

To-do

Check items off with the buttons. No phone needed.

PaperDeck Payments screen, UI mockup

Payments

Your receive QR. Hold it up, they scan, you get paid — no app in between.

PaperDeck Reading screen, UI mockup

Reading

Plain-text books, paginated on device.

The modular system

Stack what
you need.

The panel is the base. Everything else clips on — and comes off when you don't want it. Carry four cards on Monday and nothing but the panel on Saturday.

PaperDeck exploded view with parts labeled: e-paper panel, front casing, battery, buttons, lanyard module, rocker wheel, speaker, 4pc cardholder, ESP32-S3. Rough KeyShot render, not final.
OpenDeck.63.png — exploded stack. Rough KeyShot render, not final. Swipe the diagram on mobile.
  • 01 E-paper panel
  • 03 Battery
  • 04 Buttons
  • 05 Lanyard module
  • 07 Speaker
  • 08 4pc cardholder
  • 09 ESP32-S3

Stack order, base → outer

  • PaperDeck Base module, KeyShot render (not final)

    PaperDeck Base

    The e-paper panel. Everything else clips on.

    — mm

  • PaperDeck Four module, KeyShot render (not final)

    PaperDeck Four

    4-card holder.

    — mm

  • PaperDeck Slide module, KeyShot render (not final)

    PaperDeck Slide

    1-card slider.

    — mm

  • PaperDeck Clip module, KeyShot render (not final)

    PaperDeck Clip

    Money clip.

    — mm

  • PaperDeck Ring module, KeyShot render (not final)

    PaperDeck Ring

    Lanyard / strap ring.

    — mm

attach.jpg — hands clicking a module on
PaperDeck edge-on beside credit cards — 12 mm thin. KeyShot render, not final.

Open by design

Your content,
your card, no account.

Content lives on a microSD card. Push it over the device's own WiFi portal from your phone — no app to install, nothing uploaded anywhere. The firmware is public, and the device updates itself over the air straight from GitHub.

Read the firmware → github.com/CarryOpen/paperdeck

A special edition exists for people who want to go further. See CyberDeck ↓

sync.jpg — phone + device, portal upload page visible

In development

PaperDeck Solar

A solar panel module that tops up the battery in ambient light. Prototyping now, not yet confirmed for the campaign. We'll show it working before we ask anyone to pay for it.

solar-render.png — outline/wireframe render, visibly unlike shipping modules

Special edition · security research

CyberDeck

A distinct board variant with onboard RF hardware, built for security research on your own devices — not for opening anyone else's. Most modern keyfobs use rolling codes; this mainly speaks to older fixed-code fobs, garage doors, and gate remotes.

Early development. Legal and regulatory review isn't complete — treat everything here as a prototype, not a promise.

Follow the repo → github.com/CarryOpen/paperdeck

cyberdeck-render.png — CC1101 sub-1GHz module, distinct board variant

Campaign

Kickstarter,
Nov 6, 2026.

Pricing and pledge tiers announced at launch. Delivery estimated Q2 2027 — building hardware takes longer than anyone wants it to, and we'd rather say so now.

Launching on Kickstarter Nov 6, 2026. No spam, one email when it goes live.