LaskaKit ESPink ESP32 e-Paper v3.6

Product detailed description

LaskaKit ESPink is a development board based on the ESP32-S3 designed for controlling ePaper (e-Ink) displays with very low power consumption, Li-Pol battery charging via USB-C, and μŠup connectors for easy sensor integration. ePaper displays are growing in popularity, and for good reason – their extremely low power consumption and wide viewing angles make them an ideal choice for battery-powered projects. High memory capacity, low power consumption, easy connection of I²C sensors, and a vast community of makers around the ESP32 make the ESPink a versatile base for weather stations, information tags, or data displays.

You will find a connector for ePaper displays (sometimes also called e-Ink) on the board. The display itself is very energy-efficient, but it still consumes some µA even outside the refreshing phase. To eliminate even this consumption, we added a transistor to the power supply of the display and μŠup connectors to switch the power. The transistor is connected to GPIO47 (GPIO2 for v2.7), and the power is turned on when GPIO47 (2) is set to HIGH.

The board can be powered by a Li-Pol battery, which is charged via the USB-C connector. Battery voltage can be measured using an integrated voltage divider connected to GPIO9 (GPIO34 for v2.7). Connecting sensors has never been easier or safer – thanks to our locking μŠup connector, you can simply connect them without any risk of damage from reverse polarity.

Specifications:

• Version:
  • v3.5 and newer: on sale from 20/11/2025
  • v2.7: on sale until 05/11/2025
• ESP32 module:
  • v3.5: ESP32-S3-WROOM-1-N16R8 (16 MB Flash, 8 MB PSRAM)
  • v2.7: ESP32-WROOM-32 (16 MB Flash)
• Input voltage:
  • v3.5: 3.5–5.5 V
  • v2.7: 3.7–8 V
• Power supply: USB-C or Li-Pol battery (USB-C charging)
• Battery voltage measurement: integrated voltage divider (coefficient 1.769388)
• Current consumption in deep-sleep mode (standalone board with display and no peripherals connected):
  • v3.5: 16 μA
  • v2.7: 12 μA
• ePaper and μŠup power switching: via transistor, set GPIO47 (v2.7: GPIO2) to HIGH
• Connectors:
  • ePaper display
  • μŠup I²C
  • μŠup SPI
  • USB-C
  • Li-Pol battery
  • IPEX1 for external antenna (IPEX version)
• Compatible sensors with μŠup connector, e.g.:
  • LaskaKit SHT40 Air temperature and humidity sensor
  • LaskaKit SCD41 CO2, temperature and air humidity sensor
• Compatibility: Arduino IDE, GxEPD2 library (default display SPI pins correspond to GxEPD2)
• Dimensions:
  • Length: 73.5 mm (v2.7: 75 mm)
  • Width: 28.3 mm
  • Height: 7.1 mm
  • Weight: 11 g

Pinout:

DIP switch positions by display:

Package contents:

• 1× LaskaKit ESPink ESP32 e-Paper v3.6

Note:

• Display and battery are not included.
• 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.