Description
CoreInk is a main control device with an E-Ink display launched by M5Stack, using the ESP32-PICO-D4 controller. The front is embedded with a 1.54" E-Ink display with a resolution of 200x200, supporting black/white display. Compared to ordinary LCD screens, the E-Ink display provides a better text reading experience, with features such as low power consumption and image retention when powered off. For human-machine interaction, it offers a rotary switch and physical buttons, integrated LED indicator, and buzzer. It has a built-in 390mAh lithium battery, combined with an internal RTC (BM8563) to achieve timed sleep and wake-up functions, providing excellent battery life. There are independent power and reset (RST) buttons on the left side and bottom of the device, making it easy to use and debug. It offers a variety of peripheral interfaces (HY2.0-4P, M5-Bus, HAT module interface) to expand various sensor devices, providing infinite possibilities for subsequent application development.
Features
- Developed based on ESP32, supports WiFi
- Built-in 4M Flash
- Low power consumption display panel
- Nearly 180-degree viewing angle
- Human-machine interaction interface
- Magnetic back design
- Built-in lithium battery
- Rich expansion interfaces
- Development Platform
- UiFlow1
- UiFlow2
- Arduino IDE
- ESP-IDF
- PlatformIO
Includes
- 1 x CoreInk
Applications
Specifications
| Specification | Parameter |
|---|---|
| SoC | ESP32-PICO-D4 @ Dual-core processor, 240MHz main frequency |
| DMIPS | 600 |
| SRAM | 520KB |
| Flash | 4MB |
| Wi-Fi | 2.4 GHz Wi-Fi |
| Input Voltage | 5V @ 500mA |
| Interface | USB Type-C x 1, HY2.0-4P x 1, M5-Bus female connector, top HAT expansion interface |
| E-ink Screen | GDEW0154M09, SPI interface, 200 x 200@1.54", Dpi:184, 1-bit black/white display (Grayscale: 2), Viewing area size (mm): 27.6 x 27.6, Dot pitch (mm): 0.138 x 0.138, Refresh time (s): 0.82, Partial refresh time (s): 0.24 |
| Physical Button | Programmable button x 1, reset button x 1, power button x 1 |
| LED | Green LED x 1 |
| RTC | BM8563 |
| Buzzer | Passive buzzer * 1 |
| Antenna | 2.4G 3D antenna |
| Pin breakout | G25, G26, G36, G23, G34, G18, G21, G22, G14, G13 |
| Battery | 390mAh@3.7V |
| Operating Temperature | 0 ~ 60°C |
| Case Material | Plastic ( PC ) |
| Product Size | 56.0 x 40.0 x 16.0mm |
| Product Weight | 31.5g |
| Package Size | 80.0 x 45.0 x 20.0mm |
| Gross Weight | 54.9g |
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