paperd.ink - open-source e-paper development board

Prasad Guest #6732481
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paperd.ink is a 4.2" e-paper development board to showcase calendar, 
weather, to-do lists, notifications, images, and much more. The 
beautiful display allows you to get rid of all distractions and work 
peacefully. Since it's open-source and fully hackable, you can play 
around and customize it for yourself!

ESP32-WROOM-32 module

FCC/CE certified WiFi & Bluetooth for connectivity

4.2" monochrome e-paper display

<20uA current consumption in sleep mode

CP2104 USB-UART converter onboard for programming

MicroSD card slot for storing images, files, etc

Piezo buzzer for notifications and alerts

4x tactile buttons for user input

Battery charger circuit to keep it truly wireless

Extension header for interfacing and expanding capabilities

ESP32-WROOM-32

ESP32 is one of the most popular microcontrollers, and the heart of 
paperd.ink. You can program it using the micro USB connection and is 
well supported by Arduino, Micropython, and ESP-IDF.

FCC/CE Certified

Dual-core microprocessor @240MHz

WiFi 802.11 b/g/n

Bluetooth v4.2 BR/EDR & BLE

520 KB of on-chip SRAM

Integrated 4 MB SPI flash

E-paper Display

4.2” e-paper

Resolution: 400 x 300 (DPI: 120)

Color: Black & White, Monochrome

SPI Interface

Full refresh: 3s

Has support for partial refresh
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Nikolaus S. (Company: Golden Delicious Computers) #6732538
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Wir basteln mit einem kommerziellen 6-Zoll ePaper-Reader (Kobo Clara, 
Tolino Shine 3 mit 300 ppi 1.448 x 1.072 Pixel) und da ist dann ein 
Touch dabei, Batterie drin, ein 1GHz-i.MX6 mit 512 MB RAM drauf und es 
läuft ein volles Linux (LetuxOS - zunehmend gehen da Teile Upstream)...
Kostet (wenn man ein günstiges Angebot erwischt) kaum mehr das das hier 
beworbene Eval-Board und ist genauso gut hackable (wenn auch nicht mit 
Schaltplan - da muß man etwas raten, aber sonst wäre das auch ein 
langweiliges Projekt).
Und je nachdem was man installiert, läuft da mehr drauf als "calendar, 
weather, to-do lists, notifications, images".
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