M5Paper Color E-Paper Development Board ESP32S3 400x600 4 Inch SPECTRA 6 E-Ink Display Low Power WIFI IoT Development Module

Specification:
Product Name: C151 M5Paper Color 4.0" Full-Color E‑Paper Development Board
SoC: ESP32‑S3R8, dual‑core Xtensa LX7, up to 240 MHz
Flash / PSRAM: 16 MB Flash, 8 MB PSRAM
Display: 4.0" E‑Paper (E6 full‑color, E Ink Spectra 6), resolution 400 x 600
Wireless: 2.4 GHz Wi‑Fi
Audio: ES8311 audio codec, 1 W speaker, MEMS microphone
RTC: RX8130CE real‑time clock
Sensors: SHT40 temperature & humidity sensor
Buttons: 3 user keys (A/B/C) + 1 power key
I/O Port: PORT.A (G, 5V, G4, G5)
Storage Expansion: MicroSD card slot (card not included)
Battery: Built‑in 1250mAh Li‑ion battery
Power Input: USB Type‑C, DC 5V
IR: IR transmitter
RGB LEDs: Onboard RGB indicators
Dimensions: 103.9 x 70.8 x 8.5mm (4.09 x 2.78 x 0.33 in)
Weight: Approx. 73g

Introduction: 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.

Features:
1. 4‑inch full‑color E‑paper screen with 400×600 resolution for clear text, images and signage.
2. ESP32‑S3 core with 16 MB Flash & 8 MB PSRAM, suitable for complex IoT and display projects.
3. Built‑in Wi‑Fi, RTC and SHT40 sensor, ideal for weather boards, dashboards and status panels.
4. Integrated 1W speaker, MEMS microphone and ES8311 codec for audio prompts or voice projects.
5. Three customizable side buttons plus power key for menu control, paging and user interaction.
6. Compact, lightweight body with USB‑C power, MicroSD slot and PORT.A expansion for secondary modules.

Package Includes:
1 x M5Stack C151 M5Paper Color E‑Paper Development Board