E-paper Module Black, White and Red 2.9 inch

Module Features

• 1. No backlight, keeps displaying last content for a long time even when power down, and the time can be up to half a year
• 2. Ultra low power consumption, basically power is only required for refreshing
• 3. SPI control interface, which can be connected to Raspberry/Arduino/rduino/STM32 and other main control boards
• 4. Provide complete supporting information (Arduino sample program, showing global display and partial display)

Module parameters

• Size: 2.9 inch
• Dimensions (module): 90.5mmx45.7mm
• Display size (viewable area): 66.89mmx29.05mm
• Working voltage: 2.8V-5.3V
• Communication interface: 3-wire SPI/4-wire SPI (optional)
• Dot pitch: 0.226×0.227mm
• Resolution: 296×128
• Display color:  black and white and red three colors
• Gray level: 2
• Partial refresh: 0.3s (only black and white dual colors support partial refresh)
• Global refresh: 15s (black and white red three colors)

For a computer, its data storage method is high-order first, low-order second, and
a byte has only 8 bits, so there will be a little change: so that only 2 bytes are

needed to represent 16 pixels.