Quelltext der Seite 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.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL22506 WSAL22506 – 3inch e-Paper (G) raw display, 400 × 168, SPI Interface]
* [https://shop.jw-tech.eu/p/WSAL22758 WSAL22758 – 3inch E-Paper Module (G), 400 × 168, Red/Yellow/Black/White]

== 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 ==
* [https://www.waveshare.com/wiki/3inch_e-Paper_Module_(G) 3inch e-Paper Module (G) - Waveshare Wiki]
* Source revision: 103776
* Captured: 2026-09-03T04:05:40+00:00
* SHA-256: <code>bbb21c28f47bd53a356f464b369801ff5737204ab5c61671a59fc69285f48b8a</code>