4.2" Black and White ePaper

Part Number: CFAP400300B1-0420

This crisp, high-contrast black and white ePaper display is perfect for long-term displays with low power requirements. At 4.2 inches, it's perfect for a small sign - show daily specials, the weather forecast, product information, etc. Once the display is updated, all power connections can be removed and the graphic will remain on the display with zero power! Read more about how ePaper displays work on our blog.

Use our free ePaper software to prepare a bitmap image for this display.

Adapter / Breakout Board

Want to get this display up and running quickly with an Arduino or Seeeduino? Our ePaper Adapter Board makes connecting this ePaper simple and fast. Or, check out our complete kits below.

*This epaper display DOES NOT support partial updates.

This part replaces CFAP400300B0-0420, and is identical to the previous version with the exception that the controller chip requires resetting three times prior to initialization to ensure expected behavior.

• square_foot Physical Characteristics

  Physical Characteristics

  Column Dots x Row Dots

  400 x 300

  Module Overall	width	height	depth
  millimeters	91	77	1.18
  inches	3.58	3.03	0.05
  *width / height does not include Foldable Tab

  Diagonal Dimension

  4.2"

  Active Area	Width	Height
  millimeters	84.8	63.6
  inches	3.34	2.50

  Dot Pitch	Width	Height
  millimeters	0.212	0.212
  inches	0.0083	0.0083

  Optional Connectors

  CS050Z24GA0

  Flexible Cable (FFC/FPC)	length
  millimeters	18.5
  inches	0.728

  Weight	14g
  Pin Count	24

• visibility Optical Characteristics

  Optical Characteristics

  Glass Type	ePaper
  View Angle	Ultra-Wide°

  Foreground Color	Black
  Background Color	White

• electric_bolt Electrical Specification

  Electrical Specifications

  Supply Voltage for Logic Minimum	2.3V
  Supply Voltage for Logic Maximum	3.6V
  Supply Voltage for Logic Typical	3.3V

  Supply Current Minimum	0.005mA
  Supply Current Maximum	8mA

• nature Environmental

  Environmental

  Operating Temperatures	min	max
  Celsius	0°	50°
  Fahrenheit	32°	122°

  Storage Temperatures	min	max
  Celsius	-25°	70°
  Fahrenheit	-13°	158°

  Humidity	min	max
  Non-condensing	40%	70%

• cable Electronics

  Electronics

  Interface

  SPI

• picture_as_pdf Datasheets
  picture_as_pdf

  CFAP400300B1-0420 Datasheet
  

  
  
• download Files and Downloads
  folder_zip Hardware Design - 3D Model
  

  picture_as_pdf Other Document - ePaper Getting Started Guide
  

  link Arduino Demo Code Download on Github
  

  link Arduino Demo Code Repository on Github
  
• assured_workload Compliance Documents
  picture_as_pdf Declaration of Conformity RoHS2

  picture_as_pdf Declaration of Conformity REACH