https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL14138_%E2%80%93_e-Paper_ESP8266_Driver_Board%2Fen 2026-10-23T22:04:11Z Versionsgeschichte dieser Seite in JW Tech Wiki MediaWiki 1.43.9 https://wiki.jw-tech.eu/index.php?title=WSAL14138_%E2%80%93_e-Paper_ESP8266_Driver_Board/en&diff=1498&oldid=prev 2026-09-05T22:31:08Z

<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p> <p><b>Neue Seite</b></p><div>__NOINDEX__<br /> &#039;&#039;&#039;Documentation notice:&#039;&#039;&#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.<br /> <br /> == Summary ==<br /> The Waveshare E-Paper ESP8266 driver board is a compact expansion board that communicates with various Waveshare e-paper raw panels via the SPI bus protocol. It integrates an ESP8266 WiFi microcontroller and enables wireless content updates through an HTML frontend or local offline demos.<br /> <br /> == Related products at JW Tech ==<br /> * [https://shop.jw-tech.eu/p/WSAL14138 WSAL14138 – Universal e-Paper Raw Panel Driver Board, ESP8266 WiFi Wireless]<br /> <br /> == Technical overview ==<br /> * Supported models: The board supports a range of Waveshare e-paper raw panels from 1.54 to 13.3 inches. A corresponding demo exists for each model (e.g., epd1in54_V2-demo, epd13in13b-demo).<br /> * Interfaces: VCC (3.3 V), GND, DIN (GPIO13/D7, MOSI), SCK (GPIO14/D5, CLK), CS (GPIO15/D8), DC (GPIO4/D2), RST (GPIO2/D4) and BUSY (GPIO5/D1). This mapping is hardwired on the board and requires no user configuration.<br /> * Operating parameters: 5 V supply, operating current 50–100 mA, outline dimensions 29.57 mm × 48.26 mm, hole diameter 2.9 mm.<br /> * WiFi standard: 802.11b/g/n; supports only the 2.4 GHz band.<br /> * Bus interfaces: Default 4-wire SPI; 3-wire SPI also available.<br /> * Development environment: Arduino IDE support for ESP8266; examples are provided under “examples” (offline) and “Loader_esp32wf” (WiFi/HTML).<br /> * Image processing: Supports two algorithms – the Level method (for images with few colors) and Floyd-Steinberg dithering (for gradients and many color tones).<br /> * Supported image file formats: BMP, JPEG, GIF, PNG, etc.<br /> <br /> == Notes and version constraints ==<br /> * Version sensitivity: Demos reference the latest panel version. For older panels, check the version label on the back of the screen.<br /> * Network segment: If the HTML frontend is unreachable, ensure the IP network segment in srvr.h matches the actual WiFi network and that there is no IP conflict.<br /> * Older 1.54-inch and 2.13-inch panels without a V2 logo require changing a value in epd1in54.h or epd2in13.h to 1.<br /> * ‘Picture cannot be refreshed’ error: Try using Google Chrome first; if it still fails, test with a different network.<br /> * No web search was performed; all facts come solely from the supplied source and product metadata. Freshness limitation: source fetched on 30 Aug 2026; changes after that date are not reflected.<br /> <br /> == Source and revision record ==<br /> * [https://www.waveshare.com/wiki/e-Paper_ESP8266_Driver_Board E-Paper ESP8266 Driver Board - Waveshare Wiki]<br /> * Source revision: 100989<br /> * Captured: 2026-08-30T04:11:45+00:00<br /> * SHA-256: &lt;code&gt;12cfe3dd6659a73bafa4b5519eade48ebe087c79ac8e07ce948a8f5c92454666&lt;/code&gt;</div>

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