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.
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
| Specification | Parameter |
|---|---|
| SoC | ESP32-S3R8 @Dual-core Xtensa LX7, up to 240MHz |
| Flash | 16MB |
| PSRAM | 8MB |
| Wi-Fi | 2.4 GHz Wi-Fi |
| Display | 4" E-Paper (E6 Full-Color) ED2208-DOA (EL040EF1), Resolution 400x600 |
| Input Power | USB Type-C DC 5V |
| Battery Capacity | 1250mAh |
| Audio Codec | ES8311 |
| Microphone | MEMS Microphone, ES7210 Audio ADC, Integrated AEC Circuit |
| Speaker | 1W @ 8Ω 2520 Speaker, AW8737A Audio Amplifier |
| Temp/Humidity | SHT40 |
| Expandable Storage | microSD |
| RTC | RX8130CE |
| User Buttons | 3x User Buttons + 1x Power Button (ON/OFF/RESET/BOOT) |
| Power Consumption | Standby: 92.53uA Full Load: 211.97mA |
| Product Size | 70.8 x 103.9 x 8.5mm |
| Product Weight | 73.3g |
| Package Size | 120.0 x 80.0 x 23.0mm |
| Gross Weight | 93.4g |