Highlights: 2.9 inch ePaper module black, white Resolution: 296*128 pixels, MCU:ESP32 CPU with integrated WIFI Interfaces: SPI/SDIO or I2C/UART Speakers: 8O 1W 15 X 10 X 3.6mm Micro SD card Slot Grove I2C lithium battery interface, 500mA charging current Battery connector: PH-1.25mm All IO pins run on 3.3V MCU: ESP32-D0WDQ06 ESP32 can be connected to other systems to provide Wi-Fi and Bluetooth functionality via its Provide SPI/SDIO or I2C/UART interfaces. Clock frequency (Max): 240 Mhz Flash: 4M bytes Overview This is an E-paper display module, resolution with embedded controller, communicating via SPI interface, supports more color display. Due to the advantages like ultra low power consumption, wide viewing angle, clear display without electricity, it is an ideal choice for applications such as shelf label, industrial instrument, and so on. Features · No backlight, keeps displaying last content for a long time even when power down · Ultra low power consumption, basically power is only required for refreshing · Comes with development resources and manual (examples for Arduin-esp32) Specifications · Operating voltage: 3.3 V · Interface: 3-wire SPI, 4-wire SPI · Display color: yellow, black, white · Gray level: 2 · Refresh power: 26.4mW(typ.) · Standby power: · Viewing angle: >170° SYMBOL DESCRIPTION VCC 3.3V GND Ground DIN SPI MOSI pin CLK SPI SCK pin CS SPI chip selection, low active DC Data/Command selection (high for data, low for command) RST External reset, low active BUSY Busy status output, low ac Pinout: