LaskaKit ESPink-Frame-7.x e-Paper Board

Product detailed description

LaskaKit ESPink-Frame-7.x is a development board with ESP32-S3 and a large ePaper display with 800 × 480 px resolution, designed for low-power battery-operated photo frames, calendars, and dashboards. You can choose the display in a black and white 7.5", four-colour 7.5", or six-colour 7.3" Spectra 6 variant. The display, sensors, μShup connectors, and microSD card are powered by a separate regulator, which you can turn off via a single GPIO before deep sleep. It is programmed via USB-C, which also charges the connected Li-Pol battery. The board supports the Živý Obraz project, allowing you to display photographs, calendars (Google, Outlook, Apple), weather forecasts, or data from a weather station or smart home without writing any code.

Some main features and advantages of ESPink-Frame-7.x:

• Large ePaper: 800 × 480 px, ranging from a fast black and white display to the six-colour Spectra 6; the image is retained even without power.
• External antenna: the ESP32-S3-WROOM-1U module has a U.FL connector, ensuring a reliable Wi-Fi connection even behind a large display and inside a metal frame.
• Low power consumption: power to the display and all peripherals is disconnected via GPIO47 – suitable for long-term battery operation.
• Easy expansion: I2C and SPI μShup connector, microSD card slot, and a header with free GPIOs, equipped with an SHT40 temperature and humidity sensor.
• Živý Obraz: you can upload the firmware via a web installer – select the LaskaKit ESPink 2.x, 3.5 and 3.6 board and your display type.
• Kit base: the same board is the heart of the LaskaKit Live-7.x-Pro kit, which includes a battery, antenna, and frame.

Specifications:

• Board version: v1.2
• Microcontroller: ESP32-S3 (ESP32-S3-WROOM-1U-N16R8 module, 16 MB Flash, 8 MB PSRAM), Wi-Fi, Bluetooth LE, U.FL connector for external antenna
• Display: 800 × 480 px, Good Display
  • Black and white: GDEY075T7, 7.5", 4 shades of grey, fast update approx. 3.5 s, partial refresh
  • Four-colour (black, white, red, yellow): GDEM075F52, 7.5", update approx. 22 s
  • Six-colour Spectra 6 (black, white, red, yellow, blue, green): GDEP073E01, 7.3", update approx. 19 s
• Power Supply:
  • USB-C (5 V)
  • Li-Pol battery 3.7 V, JST-PH 2.0 connector
  • battery charging via USB-C (TP4054 charger, approx. 0.56 A, indicator LED)
  • OFF/ON switch disconnecting the battery
  • 2× 3.3 V RT9080 regulator (permanent MCU power supply and switched branch for peripherals)
• Programming: via USB-C, CH9102F USB–UART converter
• Connectors and Interfaces:
  • 1× I2C μShup (JST-SH 4pin, compatible with Stemma QT / Qwiic) – SDA GPIO42, SCL GPIO2
  • 1× SPI μShup – CS GPIO46, MOSI GPIO3, SCK GPIO14, MISO GPIO21
  • microSD card slot – CS GPIO17, MOSI GPIO11, SCK GPIO12, MISO GPIO13, card detection GPIO16
  • 1×15 pin header with free GPIOs (IO1, IO4–IO8, IO15, IO18–IO20; IO35–IO37 occupied by PSRAM), GND and switched 3.3 V
  • 24-pin FPC connector for 7.5" displays and 50-pin FPC connector for 7.3" Spectra 6
• On-board sensor: SHT40 (temperature, humidity), I2C address 0x44
• Buttons: RESET and 3 user buttons UP (GPIO39), SET/PUSH (GPIO40), DOWN (GPIO41) – active LOW
• ePaper pinout (standard for GxEPD2):
  • MOSI/SDI: GPIO11
  • CLK/SCK: GPIO12
  • CS: GPIO10
  • DC: GPIO48
  • RST: GPIO45
  • BUSY: GPIO38
• Display and peripheral power switching: GPIO47, active HIGH (ePaper, μShup connectors, SHT40, microSD, header)
• Battery voltage measurement: voltage divider on GPIO9, divider ratio 1.769
• Compatibility: Arduino IDE (GxEPD2 library), ESP-IDF, Living Image
• Suitable battery: LaskaKit LiPol Battery 906090 6000mAh 3.7V JST-PH 2.0
• Suitable antenna: WiFi 45x10mm Antenna 2.4G 5dB U.FL (IPEX1) Connector
• Suitable sensors with µSup connector:
  • BME280 (pressure, temperature, humidity)
  • SCD41 (CO2, temperature, humidity)
  • BH1750 (light intensity)
• Dimensions: approx. 185 × 120 × 8 mm
• Weight: 140 g

Important note:

• Neither the battery nor the antenna is included in the package. Wi-Fi will not function reliably without a connected external antenna.
• The UP, SET, and DOWN user buttons are on GPIO39–41, which are not RTC pins – they will not wake the board from deep sleep. You can wake it using the RESET button or a timer.
• Pins IO35–IO37 on the header are used by the module's PSRAM; do not use them.

Package contents:

• 1× LaskaKit ESPink-Frame-7.x e-Paper Board with display according to the selected variant

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.