LaskaKit ESPink-Shelf-2.13 ESP32 e-Paper

Product detailed description

LaskaKit ESPink-Shelf-2.13 is a small development board featuring an ESP32 and a 2.13" ePaper display with a resolution of 250 × 122 px, designed for ultra-low power consumption and convenient programming. In deep sleep, it draws only around 13 μA – the power supply to both the display and the uSup connector is disconnected via a MOSFET controlled by GPIO2, ensuring that the display and sensors consume no power when not refreshing. It is programmed via USB-C using a CH9102F converter, which simultaneously charges the connected Li-Pol battery. The board features an I2C μSup connector for easy sensor connection, a microSD card slot, and a voltage divider for battery measurement. The board supports the Living Image project, which allows you to display photos, calendars (Google, Outlook, Apple), exchange rates, weather station data, or weather forecasts without writing any code.

Specifications:

• Microcontroller: ESP32 (ESP32-WROOM-32 module, 16 MB Flash), Wi-Fi, Bluetooth
• Display: Good Display GDEY0213B74, 2.13", 250 × 122 px, black and white
• Input voltage: 3.3–8 V
• Power Supply:
  • USB-C (5 V)
  • Li-Pol battery 3.7 V, JST-SH 1.0 connector (2pin)
  • battery charging via USB-C (TP4054 charger, indicator LED)
  • power switch
  • 3.3 V HT7833 regulator (max. 500 mA)
• Deep-sleep current: approx. 13 μA (board with display only, no peripherals connected)
• Programming: via USB-C, CH9102F USB–UART converter
• Connectors and Interfaces:
  • 1× I2C μSup (JST-SH 4pin, Stemma QT / Qwiic compatible) – SDA GPIO21, SCL GPIO22
  • microSD card slot – CS GPIO15
  • solder pads for header pins with free GPIOs
• Digital I/O pins: 19
• ePaper pinout (standard for GxEPD2):
  • MOSI/SDI: GPIO23
  • CLK/SCK: GPIO18
  • CS: GPIO5
  • DC: GPIO17
  • RST: GPIO16
  • BUSY: GPIO4
• Display and uSup connector power switching: GPIO2, active HIGH
• Battery voltage measurement: voltage divider on GPIO34
• Compatibility: Arduino IDE (GxEPD2 library), ESP-IDF, Live Image (board LaskaKit ESPink 2.x, display GDEY0213B74, resolution 128 × 250)
• Suitable batteries:
  • LaskaKit LiPol Battery 302040 200mAh 3.7V JST-SH 1.0
  • LaskaKit LiPol Battery 902545 1000mAh 3.7V JST-SH 1.0
• Suitable battery cables:
  • JST-SH-2 1.0mm 2pin connector with 10cm wires
  • JST-PH-2 2mm to JST-SH-2 1mm battery adapter, 5cm
• Suitable cables for μŠup connector:
  • μŠup cable with same connector on both ends (various lengths)
  • μŠup cable with Dupont female terminals
  • μŠup cable with test hooks
• Suitable sensors with µSup connector:
  • SHT40 (temperature, humidity)
  • BME280 (pressure, temperature, humidity)
  • SCD41 (CO2, temperature, humidity)
• Suitable bezel (front only): Good Display EW0213F9
• Suitable pin header: Dupont pin header 40Pin 2.54mm SMD type 1
• Dimensions: approx. 74 × 40 × 9.1 mm
• Weight: 17 g

Package contents:

• 1× LaskaKit ESPink-Shelf-2.13 ESP32 e-Paper

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.
• The bezel and battery are not included in the package.
• The 3.3 V stabilizer (HT7833) on the board has a maximum output of 500 mA, leaving only approx. 100 mA for peripherals. Keep this in mind when designing your project.