JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

2026-09-05T22:25:28Z

Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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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 4.2-inch three-color E-Ink raw display (400×300 pixels) is driven over SPI from microcontrollers such as Raspberry Pi, Arduino, Jetson Nano, RDK X3, STM32 and ESP32/ESP8266. The source only lists available demo environments; specific instructions are absent.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL13379 WSAL13379 – 400x300, 4.2inch E-Ink raw display, three-color]
* [https://shop.jw-tech.eu/p/WSAL13454 WSAL13454 – 400x300, 4.2inch E-Ink display module, three-color]

== Technical overview ==
* Resolution: 400 × 300 pixels
* Three-color E-Ink display
* Connected via SPI bus
* Supported platforms: Raspberry Pi, Arduino UNO R3, Jetson Nano, RDK X3, STM32 (CubeMX), ESP32/ESP8266
* Available demos in C and Python depending on platform
* No specific commands or pin mappings provided in the source

== Notes and version constraints ==
* The source provides no specific control commands, pin mappings, or circuit details.
* Version-sensitive steps and exact initialization sequences are not documented.
* Compatibility with specific firmware versions must be confirmed before deployment.

== Source and revision record ==
* [https://www.waveshare.com/wiki/4.2inch_e-Paper_Module_(B) 4.2inch e-Paper Module (B) - Waveshare Wiki]
* Source revision: 103829
* Captured: 2026-08-30T03:44:44+00:00
* SHA-256: <code>50ab39ee00eb5748982fdc74898c9f0e52ac39281c0bff44eb42da6f73997a7d</code>

WSAL13379 – 4.2inch e-Paper Module (B)/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex