M5Stack ESP32 Core Ink Development Kit(1.54'' elnk display)


Regular price $35.50

10+ In Stock

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CoreInk is a brand new E-ink display in the M5Stack cores range. Controlled by the ESP32-PICO-D4 This new device includes a 200x200 1.54" Black and White E-ink Display. Compared to a regular LCD,E-ink displays are easier on the eyes, which makes them a great choice for reading or viewing for longer periods. Other benefits are the low power consumption and the ability to retain the image even if power to the display is terminated。For control the CoreInk integrates an multi-function button,A physical button, integrated status LED and buzzer.The device also includes a 390mAh lithium polymer battery,RTC(BM8563)for controlling accurate timing and deep sleep functionality. CoreInk features independent reset and power buttons,expansion ports(HY2.0-4P,M-BUS,HAT expansion)for attaching external sensors to expand functionality,for unlimited possibilities。

Precautions: Please avoid long-time high-frequency refresh when using it. The recommended refresh interval is (15s/time). Do not expose to ultraviolet rays for a long time, otherwise it may cause irreversible damage to the ink screen. The low-power power management solution adopted by CoreInk is different from that of CORE and StickC devices. When in use, the PWR button is used as a power-on button(long press 2s). If you need to shut down the device, you need to use the software API or press the reset button on the back.

Product Features

  • ESP32 Standard wireless functions Wi-Fi
  • Internal 4M Flash
  • Low Power Display
  • 180 degree viewing angle
  • Expansion ports
  • Built-in Magnet
  • Internal Battery
  • Expandable


  • 1x CoreInk
  • 1x Type-C USB(20cm)


  • IoT Terminal
  • E-Book
  • Industrial Control Panel
  • Electronic Tag


Resources Parameter
ESP32-PICO-D4 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi
Flash 4MB Flash
Input Voltage 5V @ 500mA
Ports TypeC*1, HY2.0-4P*1 , M-BUS Female Connector,Pin Array/ Hat Expansion
Screen GDEW0154M09 | SPI Port | 200*200@1.54" | Dpi:184 | 1-bit Black & White(Grayscale:2) \ Viewing Area(mm):27.6x27.6 | Dot pitch(mm) 0.138x0.138 | Refresh Time(s) 0.82 /Partial refresh(s) 0.24
Physical Buttons Programmable *1 , Reset *1, Power *1
LED Green LED x 1
RTC BM8563
Buzzer Passive Buzzer*1
Wifi 2.4G 3D Antenna
PINS G25, G26, G36, G23, G34, G18, G21, G22, G14, G13
Battery 390mAh@3.7V
Working Temp 0°C to 60°C
Net Weight 32g
Gross Weight 55g
Dimensions 56*40*16mm
Package Size 82*46*20mm
Case Material Plastic ( PC )


  • This tutorial will show you how to control CoreInk devices through the UIFlow graphical programming platform
    This tutorial will show you how to program and control CoreInk devices through Arduino IDE

    Customer Reviews

    Based on 12 reviews
    Valeria Ovseannicova
    Core 2

    Very bad.

    Andre Courchesne
    Amazing and flexible device

    100% Arduino compatible, great feature set

    Alan Stanly
    awesome unit

    i got these for temperature monitoring because the m5stick gets too hot, these units are a perfect and do not elevate the ambient temperature, resulting in an accurate reading. I can't wait until M5 comes out with a color version of e-ink for these!

    Moises Fernandez Arias

    M5Stack ESP32 Core Ink Development Kit(1.54'' elnk display)

    David Burrueco Solé

    M5Stack ESP32 Core Ink Development Kit(1.54'' elnk display)