122 x 250 pixels, 2.13 inch e-paper e-ink display module is based on compatible with Raspberry Pi 40PIN GPIO header design, intended for Raspberry Pi series motherboard, such as for Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B ^^ Supports partial refresh minimum 560ms (4-wire SPI status) and full refresh Minimum 950ms (4-wire SPI status). We provide open source demo codes available for Raspberry Pi, Ardui. Mega and STM32 development boards ^^ SPI communication interface is reserved to facilitate connect to Arduino/STM32 and other control boards. SPI interface, less pin occupation. Adds a SPI line number selector switch ^^ Onboard Voltage Translator, which can be compatible with 3.3V and 5V MCUs ^^ Low power consumption.
Keeps displaying last content for a long time even when power down. Basically power is only required for refreshing