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m5stack / M5epd

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M5Paper Library

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M5Paper_Pic_01

Description

M5Paper is M5Stacks latest core device with a touch enabled E-ink display. Powered by the ESP32-D0WDQ6-V3 this is our first device to integrate a super sized 540*960 @4.7" E-ink display,which supports 16 grayscale levels. The display is a GT911 capacitive touch screen,which supports two point touch and a variety of gesture controls . 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. Integrated in the CoreInk are an multi-function button for operation, SHT30 temperature and moisture sensor, physical buttons and an TF card port for data storage.

Additionally the FM24C02 internal eeprom chip(256KB-EEPROM)can be used to store vital data even when the device is off. A 1150mAh lipo battery keeps the device going for long periods and battery life can be further preserved by using the RTC(BM8563)to set the device into deep sleep and wake it up again when needed。Three HY2.0-4P expansion ports are included which allow for building complex projects using the existing sensors in the M5Stack ecosystem.

?>Warning: Do not expose to ultraviolet rays for a long time, otherwise it may cause irreversible damage to the ink screen.

PinMap

E-INK & TF Card

Resolution:540*960

ESP32 Chip GPIO13 GPIO12 GPIO14 GPIO15 GPIO4
IT8951 MISO MOSI SCK CS /
TF Card MISO MOSI SCK / CS

Multi-function button

ESP32 Chip GPIO37 GPIO38 GPIO39
Multi-function button Right BTN/PWR Left

Internal I2C Connection

ESP32 Chip GPIO21 GPIO22 GPIO36
GT911 SDA SCL INT
SHT30 SDA SCL /
BM8563 SDA SCL /
FM24C02 SDA SCL /

USB Serial

ESP32 Chip GPIO1 GPIO3
CP2104 RXD TXD

M5Paper-HY2.0 4P Port

PORT PIN Protocol:
PORT.A G25,G32 I2C
PORT.B G26,G33 DAC/ADC
PORT.C G18,G19 UART

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 DocsESP32 datasheet

Related Link

Schematic

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