PaperColor

SKU:C151

Description

PaperColor is a development board featuring a 4-inch E Ink Spectra 6 full-color e-paper display with a resolution of 400x600, offering both low power consumption and high visibility. It is built around an integrated ESP32-S3R8 core with 16MB Flash and 8MB PSRAM, and supports 2.4 GHz Wi-Fi wireless communication. The board incorporates a complete human-machine interaction system, including three programmable buttons, an audio system based on the ES8311 audio codec, a MEMS microphone with AEC echo cancellation, and a speaker driven by an AW8737A amplifier — enabling high-quality voice capture and audio playback. In terms of expanded functionality, the board integrates an SHT40 temperature and humidity sensor, RX8130CE real-time clock, microSD card slot, infrared emitter, two RGB LEDs, and an HY2.0-4P expansion interface. Combined with the M5PM1 multi-stage power management system and a 1250mAh battery, it enables long-lasting, low-power operation. Suitable for IoT and embedded applications such as electronic signage, voice interaction terminals, environmental monitoring instruments, and art display installations.

Tutorial

UiFlow2

UiFlow2

This tutorial introduces how to control the PaperColor device using the UiFlow2 graphical programming platform.

Arduino IDE

Arduino IDE

This tutorial introduces how to program and control the PaperColor device using Arduino IDE.

Factory Firmware Usage Guide

Factory Firmware Usage Guide

This tutorial covers the factory firmware usage guide for PaperColor, including configuration page overview, and setup instructions for both Local Mode and Ezdata Mode.

Features

• ESP32-S3R8 Core:
  • 16MB Flash + 8MB PSRAM
  • 2.4 GHz Wi-Fi
• 4-inch E Ink Spectra 6 Full-Color E-Paper Display
• Built-in 1250mAh Battery
• microSD Card Slot
• Audio Interaction:
  • ES8311 Audio Codec
  • 1W Speaker + MEMS Microphone
• Human-Machine Interaction:
  • 3x User Buttons + 1x Power Button
  • Infrared Emitter
  • 2x RGB LED
• Onboard SHT40 Temperature & Humidity Sensor
• RX8130CE Real-Time Clock

Includes

• 1 x PaperColor

Applications

• Smart Digital Photo Frame
• Data Display Panel
• Electronic Signage

Specifications

Learn

Power On/Off

• Power On / Restart: Press the power button once
• Power Off: Press the power button twice in quick succession

Download Mode

To flash firmware, connect the device to a computer via a USB Type-C cable, then press and hold the side reset button to enter download mode and wait for the flashing process to complete.

Schematics

• PaperColor Schematics PDF

1/3

PinMap

E-Paper

KEY

IR

RGB

Audio

• G46(SPK_EN): Speaker amplifier enable
• G45(AUDIO_PWR_EN): Power supply for audio codec chips and microphone

RTC

SHT40

microSD

HY2.0-4P

M5PM1

• DCDC3V3_EN_PP(PY_MPWR_EN): 3V3_L2 power layer switch
• LDO3V3_EN_PP(RTCPY_RGB_PWR_EN_IRQ): RGB LED power supply switch
• BOOST5V_EN_PP(PY_GROVE_OUT_EN): Grove expansion interface power direction control

• PYG0(PY_EPD_EN): Enable e-paper display power supply
• PYG2(RTC_IRQ): RTC interrupt signal
• PYG3(PY_SD_PWR_EN): microSD module power supply
• PYG4(PY_SD_DET_EN): microSD detection enable, pull-up enabled
• PYG1(CARD_DEC): microSD card insertion detection

Model Size

• PaperColor Model Size PDF

Datasheets

• ESP32S3
• ES8311
• RX8130CE

Softwares

Arduino

• PaperColor Arduino Quick Start
• PaperColor M5PM1 Power Management
• M5PM1 Arduino Library
• PaperColor Arduino M5Unified Driver Library
• PaperColor Arduino M5GFX Driver Library

UiFlow2

• PaperColor UiFlow2 Quick Start

Protocol

• M5PM1 Power Management IC

ESP-IDF

• PaperColor Factory Firmware Source Code

PlatformIO

[env:m5stack-papercolor]
platform = espressif32 @ 6.12.0
board = esp32s3box
framework = arduino
board_build.partitions = default_16MB.csv
board_upload.flash_size = 16MB
board_upload.maximum_size = 16777216
board_build.arduino.memory_type = qio_opi
monitor_speed = 115200
build_flags =
    -DESP32S3
    -DBOARD_HAS_PSRAM
    -DCORE_DEBUG_LEVEL=5
    -DARDUINO_USB_CDC_ON_BOOT=1
    -DARDUINO_USB_MODE=1
    
lib_deps =
    M5Unified = https://github.com/m5stack/M5Unified
    M5GFX = https://github.com/m5stack/M5GFX
    M5PM1 = https://github.com/m5stack/M5PM1

Easyloader

Other

• PaperColor Restore Factory Firmware Tutorial
• PaperColor Factory Firmware Usage Guide

Video

• PaperColor Product Introduction and Feature Demonstration