ESP32-S3-PhotoPainter - 7.3″ Full-Color E6 E-Paper Display in a Solid Wood Frame(No batt.) - Waveshare 32753

Description

The ESP32-S3-PhotoPainter is an AIoT smart digital photo frame built around the ESP32-S3 microcontroller and equipped with a 7.3-inch full-color E Ink Spectra 6 (E6) e-paper display with a resolution of 800 × 480 pixels, housed in an elegant solid wood photo frame. The device is designed for ultra-low power consumption, extremely long standby time, and aesthetic presentation of visual content.

The e-paper display uses E6 Full Color technology, supporting six primary colors with the help of dithering algorithms, allowing vivid, saturated, and high-contrast images while maintaining the characteristic paper-like appearance of e-ink. Power is required almost exclusively during screen refresh; once updated, the display retains its content with no power consumption.

At the heart of the device is the dual-core ESP32-S3 microcontroller (Xtensa LX7, up to 240 MHz), supporting 2.4 GHz Wi-Fi and Bluetooth 5 LE, enabling network connectivity, remote content updates, and integration with AIoT applications. The system is equipped with 16 MB Flash memory and 8 MB PSRAM, providing sufficient resources for graphics processing, audio handling, and application logic.

The module integrates audio codecs, a dual-microphone array, an RTC, an SHTC3 temperature and humidity sensor, a TF card slot, and an advanced power management circuit, enabling features such as:

• Digital photo frame
• Environmental information display (temperature and humidity)
• AI voice interaction
• AI Text-to-Image generation

The enclosure is designed as a classic solid wood photo frame, equipped with a rotatable desktop stand and a wall-mount hook, allowing the device to be used both as a tabletop display and a wall-mounted decorative element.

1. ESP32-S3-WROOM-1-N16R8 - Wi-Fi and Bluetooth SoC, 240MHz operating frequency, with integrated 16MB Flash and 8MB PSRAM
2. SHTC3 temperature and humidity sensor - provides ambient temperature and humidity measurements, enabling environmental monitoring function
3. ES7210 ADC audio decoder chip - high-performance and low-power consumption audio ADC, supports multiple-channel microphone inputs
4. ES8311 DAC audio encoder chip - high-performance and low-power consumption audio DAC
5. AXP2101 - highly integrated power management chip
6. TF card slot - supports FAT32-formatted TF card for data expansion
7. MX1.25 2PIN speaker header - audio output signal, for connecting external speaker
8. MX1.25 2PIN Lithium battery header - for connecting Lithium battery
9. MX1.25 2PIN RTC backup battery header - supports rechargeable RTC batteries only 
10. KEY button - for custom function
11. BOOT button - press it when powering on to enter download mode
12. PWR power button - for system power supply ON/OFF
13. PCF85063 - RTC chip, for time keeping function
14. Dual-microphone array design - dual microphone array, supporting richer voice interaction functions 
15. Type-C port - for program burning and log printing

Features

• ESP32-S3 microcontroller
• Dual-core 32-bit Xtensa LX7 architecture
• Clock frequency up to 240 MHz
• Wireless connectivity: Wi-Fi 2.4 GHz and Bluetooth 5 LE
• 512 kB SRAM
• 384 kB ROM
• 16 MB Flash memory
• 8 MB PSRAM
• E-paper display (E-Ink Spectra 6, E6 Full Color)
• Display size: 7.3 inch
• Resolution: 800 × 480 px
• Display colors: black, white, green, blue, red, yellow
• Grayscale: 2 levels
• Active display area: 160.0 × 96.0 mm
• Pixel pitch: 0.2 × 0.2 mm
• Viewing angle: >170°
• Refresh time: approx. 12 s
• Sleep current consumption: ≤ 1 mA
• Power consumption mainly during display refresh
• Display technology: E-Ink Spectra 6 (E6) with color dithering
• High contrast, high color saturation, paper-like visual effect
• PCF85063 real-time clock (RTC)
• SHTC3 temperature and humidity sensor
• AXP2101 power management IC
  • ES7210 audio codec (ADC) for microphone input
  • ES8311 audio codec (DAC) for audio output
• Dual microphone array
• Audio output via MX1.25 speaker connector
• TF (microSD, FAT32) card slot
  • Charging / operating voltage: 5 V
  • MX1.25 3.7 V battery connector (battery not included)
  • Separate RTC backup battery connector (rechargeable only)
• Enclosure in the form of a solid wood photo frame
  • Rotatable desktop stand
  • Wall-mount hanging option
• Overall dimensions: 154.0 × 214.0 × 32.0 mm
• Intended use: digital photo frame, AIoT applications, information displays, smart home systems
• Open-source software support

Kit includes

• ESP32-S3-PhotoPainter (without battery)
• Card reader
• Screen protective film
• USB Type-A to USB Type-C cable (~1 m)
• 8 Ω / 2 W speaker
• Wall-mount hanger (2 pcs, 1 pre-installed)
• Case opening tool
• 16 GB TF card