LILYGO Mini E-Paper Core combines ESP32 with 1.02-inch ePaper Display in 3D printed enclosure

LILYGO Mini E-Paper Core is another ESP32-based e-Paper display by LILYGO, but it’s a really tiny 1.02-inch e-Paper display housed in a 3D printed enclosure that reminds me of M5Stack Core with a 2-inch TFT LCD.

The tiny low-power display also offers a MicroSD card socket, a reset button, a three-way user button, as well as headers for GPIOs, ADC, DAC, SPI, and more.


lilygo mini e-paper coreLILYGO Mini E-Paper Core specifications:

  • Wireless SiP – ESP32-PICO-D4 system-in-package with ESP32 dual-core processor, 4MB Flash, 2.4 GHz WIFi 4 & Bluetooth connectivity
  • Storage – MicroSD card socket
  • Display – 1.02-inch e-paper display with 128×80 resolution
  • USB – 1x USB Type-C for power and programming
  • Expansion
    • 7-pin 2.54mm pitch header with 5x GPIO, 2x ADC, 2x DAC, 3.3V, and GND
    • 8- pin 2.54mm pitch header with 4x GPIO, SPI, 1x ADC, 5V, VBUS, VBat, and GND
  • Misc – Three-way toggle button connected to G36, G0, and G39, reset button
  • Power Supply
    • 5V via USB-Type-C port
    • External battery support via Vbat pin, and charging circuit
  • Power consumption – About 10uA in sleep mode
  • 3D printed shell

T-U2T USB connection diagram

You’ll need the company’s T-U2T downloader in order to flash the firmware, apparently already used with the company’s other e-Paper displays, as it’s not using a standard USB wiring.

I could not find firmware or code samples specific to Mini E-Paper Core, so the company may not have released anything yet, but the Arduino code for T5 ePaper displays should be reusable, possibly with some modifications.

LILYGO Mini E-Paper Core is sold for around $18, or $22.28 with T-U2T downloader on Aliexpress.  As I complete this article, I’ve also noticed the company released another interesting product with an e-paper display, namely LILYGO T-Echo equipped with a 1.54-inch display, nRF52832 Bluetooth SoC,  plus LoRaWAN connectivity, and GNSS using SoftRF open-source multifunctional DIY IoT-based general aviation proximity awareness system.



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Pallav Aggarwal
2 years ago

Wondering what is the real-world application where these are getting used other than playing 🙂

E-paper display has been around for many years now but still not adopted so widely mainly due to its cost, refresh rate.

What do you think?

2 years ago

monitoring systems, home automation and/or weather reporting, alarm clocks etc are all types of devices that do not need a high refresh rate and for which power savings are key factors.

Khadas VIM4 SBC