Users Manual

1. OUTLINE
COREINK is ESP32 board which based on ESP32-PICO-D4 module, contained
1.54-inch eINK. The board is made of PC+ABC.
1.1 Hardware Composition
The hardware of COREINK: ESP32-PICO-D4 chip, eLNK, LED, Button, GROVE
interface, TypeC-to-USB interface, RTC,Power Management chip battery.
ESP32- PICO-D4 is a System-in-Package (SiP) module that is based on ESP32,
providing complete Wi-Fi and Bluetooth functionalities. The module integrates a 4-MB
SPI flash. ESP32-PICO-D4 integrates all peripheral components seamlessly, including a
crystal oscillator, flash, filter capacitors and RF matching links in one single package.
1.54”E-Paper Display
The display is a TFT active matrix electrophoretic display , with interface and
areference system design . The 1 . 54 " active area contains 200x200 pixels , and has1-
bit white / black full display capabilities . An integrated circuit contains gate
buffer ,source buffer , interface , timing control logic , oscillator , DC-DC , SRAM , LUT ,
VCOMand border are supplied with each panel