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CONTENTS

CoreInk

SKU:K048

Tutorial

Choose the development platform you want to use, view the corresponding tutorial&quick-Start.

UIFlow UIFlow
UIFlow
This tutorial will show you how to control CoreInk devices through the UIFlow graphical programming platform
UIFlow2.0 UIFlow2.0
UIFlow2.0
This tutorial will show you how to control the CoreInk device through the UIFlow2.0 graphical programming platform
Arduino IDE Arduino IDE
Arduino IDE
This tutorial will show you how to program and control CoreInk devices through Arduino IDE

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 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

Includes

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

Application

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

Specification

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 )

Driver Installation

Driver Installation|Click the link below to download the driver that matches the operating system. There are currently two driver chip versions (CP210X/CH9102). Please download the corresponding driver compressed package according to the version you are using. After decompressing the compressed package, select the installation package corresponding to the number of operating systems to install. (If you are not sure of the USB chip used by your device, you can install both drivers at the same time. During the installation process of CH9102_VCP_SER_MacOS v1.7, an error may occur, but the installation is actually completed, just ignore it.)

Driver name Applicable driver chip Download link
CP210x_VCP_Windows CP2104 Download
CP210x_VCP_MacOS CP2104 Download
CP210x_VCP_Linux CP2104 Download
CH9102_VCP_SER_Windows CH9102 Download
CH9102_VCP_SER_MacOS v1.7 CH9102 Download
Port Selection on MacOS
On MacOS, there may be two available ports. When using them, please select the port named wchmodem.

EasyLoader

EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification.

Download Windows Version Easyloader

Download MacOS Version Easyloader

Description:|This video case will demonstrate some of CoreInk's basic features, including magnetics, ink screens, IoT applications, and more (not exactly the same as the program in Easyloader).

Pin Mapping

E-Ink Display

Screen Resolution:200x200

ESP32 Chip GPIO4 GPIO0 GPIO15 GPIO9 GPIO18 GPIO23
GDEW0154M09 BUSY RST D/C CS SCK MOSI

Multi-function button & Physical Button & LED & Buzzer

ESP32 Chip GPIO37 GPIO38 GPIO39 GPIO5 GPIO10 GPIO2 GPI12
Multi-function button Left position Button press Right position / / / /
Physical Button / / / Physical Button / / /
LED / / / / LED / /
Buzzer / / / / / Buzzer /
Power Control / / / / / / MOS

USB Serial

ESP32 Chip GPIO1 GPIO3
CP2104 RXD TXD

Internal I2C Connection

ESP32 Chip GPIO21 GPIO22
BM8563 SDA SCL

Coreink-HY2.0 4P Port

PORT PIN Protocol
EXT-PORT G32/33 I2C

ESP32 ADC/DAC Mappable Pins

ADC1 ADC2 DAC1 DAC2
8 Channel 10 Channel 2 Channel 2 Channel
G32-39 G0/2/4/12-15/25-27 G25 G26

For more info on specific pin functions refer to the official ESP32 Docs ESP32 datasheet

Structure block diagram

Schematic

Module Size

module size

Arduino

video