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WSAL22506 – 3inch e-Paper Module (G)/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The 3inch e-Paper Module (G) is a 400 × 168 pixel grayscale e-paper display with an SPI interface. The source lists it as a raw display or module and provides demos for Raspberry Pi, Arduino, Jetson Nano, RDK X3, and STM32.

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Technical overview

  • Resolution: 400 × 168 pixels; color space per product metadata is Red/Yellow/Black/White for module WSAL22758, while the raw display WSAL22506 is described with an SPI interface.
  • Interface: SPI is explicitly named in the product name; exact pinout or clock values are not given in the provided source.
  • Supported platforms: demos are available for Raspberry Pi (C and Python), Arduino UNO R3, Jetson Nano (C and Python), RDK X3 (Python), and STM32 (STM32CubeMX).
  • The source page includes sections on Introduction, working with each listed platform, Resources (documents, demos, datasheets), FAQ, and technical support.
  • No electrical values, commands, prices, stock levels, certifications, or warranty claims are made in the source.

Notes and version constraints

  • The provided source contains only the manual outline; specific guides, code examples, or pinouts are missing from the excerpt.
  • No exact electrical specifications (voltage, power consumption, clock rates) are present in the source.
  • Version-sensitive steps and human confirmation are recommended because the source does not provide complete implementation details.
  • Product variants differ: WSAL22506 (raw display, SPI) vs. WSAL22758 (module with color definition); which variant the demos apply to is not clear from the excerpt.

Source and revision record

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