General description No backlight, the power can maintain the last screen display for a long time. This E-Ink display features very low power consumption, activating only during refresh via the SPI control interface. It is compatible with various main control boards such as Arduino Nano and STM32, and includes an onboard level conversion chip for compatibility with both 3.3V and 5V microcontroller interfaces. Technical specifications Operating voltage: 3.3V/5V Communication interface: 3-wire SPI, 4-wire SPI Dimensions: 89.5 x 38 mm Display size: 66.89 x 29.05 mm Resolution: 296 x 128 pixels Display color: black and white Gray level: 2 Partial refresh time: 0.3 s Refresh consumption: 26.4 mW (typical) Standby current: Less than 0.01 µA Viewing angle: More than 170° Material: Plastic + Metal Compatibility and accessories Compatible with Arduino Nano, STM32, and other main control boards Package contents: 3 screens, 3 connecting cables (20 cm each) Other information Note: Light reflection