Overview
Due to the advantages of ultra-low power consumption, wide viewing angle, and clear display without electricity, it is an ideal choice for applications such as shelf labels and industrial instruments.

Features
1. Without backlight, the last content can be displayed for a long time even if it is turned off
2. Ultra-low power consumption, basically only need to refresh the power supply
3. Attached with development resources and manuals (example of Arduin-esp32)

Product specifications
1. Working voltage: 3.3V
2. Interface: 3-wire SPI, 4-wire SPI
3. Display color: black, white
4. Grayscale: 2
5. Full refresh time: 8s
6. Refresh power: 26.4mW (typical value)
7. Driver chip: DEPG0213BN

ESP32 features:
1. Immersion Gold Craft
2. High cost performance
3. Small size, easy to embed other products
4. Powerful function supports LWIP protocol, Freertos
5. WiFi supports three modes: AP, STA and AP + STA
6. Support Windows system (cygwin and msys32) and Linux system
7. Support Arduino-ide, ESP-IDF, Micropython multiple development environments
8. Support Lua program, easy development