Quelltext der Seite WSAL18057 – 3.7inch e-Paper HAT/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 ==
Technical overview of the Waveshare 3.7inch e-Paper HAT: display parameters, Raspberry Pi interfacing, and compatibility notes.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL18057 WSAL18057 – 3.7inch e-Paper e-Ink Display HAT For Raspberry Pi, 480×280, Black / White, 4 Grey Scales, SPI]
* [https://shop.jw-tech.eu/p/WSAL18381 WSAL18381 – 3.7inch e-Paper e-Ink Raw Display, 480×280, Black / White, 4 Grey Scales, SPI, Without PCB]

== Technical overview ==
* The display is 480 × 280 pixels with a black-and-white panel supporting four grey scales.
* Communication uses the SPI interface.
* The module is a HAT that plugs directly onto a Raspberry Pi GPIO pin header.
* Supported development environments include C and Python demos for Raspberry Pi, Jetson Nano, RDK X3, Arduino UNO R3, STM32 (via CubeMX), and ESP32/ESP8266.
* Additional resources such as datasheets and demo projects are listed under “Resources” in the wiki.
* Frequently asked questions about e-paper operation are available in the FAQ section.

== Notes and version constraints ==
* The exact pinout of the HAT is not visible from the source; consult the official pin map before soldering or connecting.
* No specific driver commands or library names were provided in the text; these must be taken from the respective demo sources.
* Compatibility with particular Raspberry Pi model generations is not explicitly confirmed in the source.
* Electrical values such as operating voltage or current draw are missing; do not invent them.

== Source and revision record ==
* [https://www.waveshare.com/wiki/3.7inch_e-Paper_HAT 3.7inch e-Paper HAT - Waveshare Wiki]
* Source revision: 103815
* Captured: 2026-09-01T02:58:04+00:00
* SHA-256: <code>cacdb22e8c0eadf8bd3b22dca413f3377ef5d98204daa9fabeeb199fa015279b</code>