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	<title>WSAL18057 – 3.7inch e-Paper HAT/en - Versionsgeschichte</title>
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		<summary type="html">&lt;p&gt;Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Neue Seite&lt;/b&gt;&lt;/p&gt;&lt;div&gt;__NOINDEX__&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Documentation notice:&amp;#039;&amp;#039;&amp;#039; 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.&lt;br /&gt;
&lt;br /&gt;
== Summary ==&lt;br /&gt;
Technical overview of the Waveshare 3.7inch e-Paper HAT: display parameters, Raspberry Pi interfacing, and compatibility notes.&lt;br /&gt;
&lt;br /&gt;
== Related products at JW Tech ==&lt;br /&gt;
* [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]&lt;br /&gt;
* [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]&lt;br /&gt;
&lt;br /&gt;
== Technical overview ==&lt;br /&gt;
* The display is 480 × 280 pixels with a black-and-white panel supporting four grey scales.&lt;br /&gt;
* Communication uses the SPI interface.&lt;br /&gt;
* The module is a HAT that plugs directly onto a Raspberry Pi GPIO pin header.&lt;br /&gt;
* Supported development environments include C and Python demos for Raspberry Pi, Jetson Nano, RDK X3, Arduino UNO R3, STM32 (via CubeMX), and ESP32/ESP8266.&lt;br /&gt;
* Additional resources such as datasheets and demo projects are listed under “Resources” in the wiki.&lt;br /&gt;
* Frequently asked questions about e-paper operation are available in the FAQ section.&lt;br /&gt;
&lt;br /&gt;
== Notes and version constraints ==&lt;br /&gt;
* The exact pinout of the HAT is not visible from the source; consult the official pin map before soldering or connecting.&lt;br /&gt;
* No specific driver commands or library names were provided in the text; these must be taken from the respective demo sources.&lt;br /&gt;
* Compatibility with particular Raspberry Pi model generations is not explicitly confirmed in the source.&lt;br /&gt;
* Electrical values such as operating voltage or current draw are missing; do not invent them.&lt;br /&gt;
&lt;br /&gt;
== Source and revision record ==&lt;br /&gt;
* [https://www.waveshare.com/wiki/3.7inch_e-Paper_HAT 3.7inch e-Paper HAT - Waveshare Wiki]&lt;br /&gt;
* Source revision: 103815&lt;br /&gt;
* Captured: 2026-09-01T02:58:04+00:00&lt;br /&gt;
* SHA-256: &amp;lt;code&amp;gt;cacdb22e8c0eadf8bd3b22dca413f3377ef5d98204daa9fabeeb199fa015279b&amp;lt;/code&amp;gt;&lt;/div&gt;</summary>
		<author><name>JWTechPublisher</name></author>
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