ESP32

Note

Before compiling or uploading the example, install the esp32 board package by Espressif Systems in Arduino IDE. Follow Environment Configuration to complete the installation. If the package is already installed, continue below.

Hardware Connection

Use the module’s 8-pin header. The examples provide a default ESP32-S3 profile and an alternate classic ESP32 profile. Link according to the table below.

ESP32-S3 (default)

ESP32-S3 Pin Correspondence Table

E-paper module pin	ESP32-S3 GPIO
VCC	3.3V
GND	GND
DIN / MOSI	GPIO41
CLK / SCK	GPIO42
CS	GPIO4
DC	GPIO5
RST	GPIO35
BUSY	GPIO36

Classic ESP32

Classic ESP32 Pin Correspondence Table

E-paper module pin	ESP32 GPIO
VCC	3.3V
GND	GND
DIN / MOSI	GPIO2
CLK / SCK	GPIO4
CS	GPIO5
DC	GPIO18
RST	GPIO19
BUSY	GPIO21

For classic ESP32, select EPD_BOARD_ESP32_CLASSIC instead of the default EPD_BOARD_ESP32_S3 profile in the matching LAFVIN-EPD board configuration.

The module regulates the supply internally and level-translates the host signals. The reference driver sets the SPI frequency to 4 MHz.

Run The Demo

Download the code by clicking this link: Download Code

After downloading and extracting the files, navigate to the ESP32/EPD290_4C folder where you’ll find the example programs:

Arduino Example Folder

Open the EPD290_4C.ino file:

Opening the Example File

Select the corresponding Board and Port in the Tools menu of the Arduino IDE:

Esp32s3 Selecting Board and Port

Esp32 Selecting Board and Port

Finally, click upload. A successful upload will look like this (Arduino 2.3.10):

Successful Upload