paperd.ink - pretty & powerful
Say hi to paperd.ink, the 4.2″ open-source e-paper development board that’s perfect for hobbyists, makers, builders, and electronic enthusiasts. With its high battery life, fully hackable design, and wireless connectivity for WiFi and Bluetooth, paperd.ink makes it easy to build innovative projects.
Our two variants, Classic and Merlot, offer a monochrome and tricolor e-paper display, respectively, so you can choose the perfect display for your project.
Plus, every paperd.ink device comes with a battery and enclosure, so you can start building right away. Join the paperd.ink community and start creating amazing projects!
Why paperd.ink?
Non-intrusive e-paper display
With high-quality e-paper displays, paperd.ink devices allows for crisp and clear visuals
Stay always connected
FCC/CE certified WiFi & Bluetooth enabled seamless connectivity
Open-source & customizable
Onboard CP2104 USB-UART converter so you can extend or build on top of it
Get alerts
Piezo buzzer for notifications
Lasts long for months
With our low power design and 1900mAh battery, you can go months without charging; consumes <20uA in deep sleep
Save & store
MicroSD card slot for storing images, data, and much more
Classic vs Merlot
| Feature | Classic | Merlot |
|---|---|---|
| Colors | 4 level grayscale | Black, White and Red |
| Display resolution | 400×300 px | 400×300 px |
| Screen size | 4.2 inch | 4.2 inch |
| Full update time | ~ 1 sec | ~ 17 sec |
| Partial update time | ~ 0.5 sec (Fast partial update) | ~ 17 sec (Slow partial update) |
| I/O expander address | 0x38 | 0x38 |
| Deep sleep current (Timer Wakeup) | 16uA | 17uA |
| Deep sleep current (Button Wakeup) | 1.4mA | 1.4mA |
| Battery capacity | 1900mAh | 1900mAh |
| Enclosure color | Black + White | White + Red |
| SD card tray | Yes | Yes |
| Type-C Charging/Programming port | Yes | Yes |
| Ideal Use Cases | Calendar, To-Dos, Tracking, etc. | Art display, Quotes generator, etc. |
Supported by
Press
FAQs
Both paperd.ink Classic and Merlot come with the respective E-paper Displays, Battery, and an Enclosure.
Yes, the battery is glued which can be removed or adjusted based on the enclosure fitting.
We have our shipping partner doing door-to-door deliveries. In most cases, you should not need to pay anything extra but it is subject to the international conditions at that time. In case there are any additional duties involved you will have to pay for them during delivery.
Yes, all of the examples and codes in our docs work on paperd.ink Classic and Merlot devices.