Description:
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 Lipo，RTC(BM8563)for controlling accurate timing and deep sleep funcionality. CoreInk features independent reset and power buttons，expansion ports(HY2.0-4P，M-BUS，HAT expansion)for attaching external sensors to expand functionailty，for unlimited possibilities。

Warning: Please avoid using high refresh rates，reccommended refresh rate is(15s/per refresh), Do not expose to ultraviolet rays for a long time, otherwise it may cause irreversible damage to the ink screen.

Features:
ESP32 Standard wireless functions WiFi,Bluetooth
Internal 4M Flash
Low Power Display
180 degree viewing angle
Expansion ports
Built-in Magnet
Internal Battery
Expandable

Specification:
ESP32-PICO-D4 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
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 32°F to 104°F ( 0°C to 40°C )
Net Weight: 32g
Dimensions: 56*40*16mm
Case Material: Plastic ( PC )

Package Included:
1x CoreInk
1x Type-C USB(20cm)
Application
IoT Terminal
E-Book
Industrial Control Panel
Electronic Tag