https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=4777_%E2%80%93_RS485_Board_%283.3V%29%2Fen 2026-10-23T22:00:23Z Versionsgeschichte dieser Seite in JW Tech Wiki MediaWiki 1.43.9 https://wiki.jw-tech.eu/index.php?title=4777_%E2%80%93_RS485_Board_(3.3V)/en&diff=1340&oldid=prev 2026-09-05T22:27:51Z

<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 RS485 communication board uses the on-board SP3485 transceiver and is powered at 3.3 V. It provides an RS485 A/B interface via pin headers and terminals, with UART connection.<br /> <br /> == Related products at JW Tech ==<br /> * [https://shop.jw-tech.eu/p/4777 4777 – RS485 Board (3.3V)]<br /> * [https://shop.jw-tech.eu/p/WSAL4777 WSAL4777 – RS485 Board (3.3V)]<br /> <br /> == Technical overview ==<br /> * On-board chip: SP3485 as the RS485 transceiver<br /> * Supply voltage: 3.3 V<br /> * Interfaces: RS485 (A/B) and UART<br /> * Two connection options for the RS485 lines: black pin header row (e.g., using DuPont cables) and blue screw terminals (e.g., using twisted pair or ordinary wire)<br /> * Both variants connect to the same RS485 A/B interfaces; the difference is only the mechanical connection type<br /> * Category: Modules, RS232/RS485/CAN<br /> * Brand: Waveshare<br /> <br /> == Notes and version constraints ==<br /> * The source contains no explicit commands, prices, warranty, or safety statements; none were added.<br /> * Exact pinout, baud rate, and compatibility with specific controllers are not stated in the source document and require manual confirmation.<br /> * Version-specific steps are missing from the provided text and should be verified against the current user manual before deployment.<br /> <br /> == Source and revision record ==<br /> * [https://www.waveshare.com/wiki/RS485_Board_(3.3V) RS485 Board (3.3V) - Waveshare Wiki]<br /> * Source revision: 69303<br /> * Captured: 2026-08-29T08:43:31+00:00<br /> * SHA-256: &lt;code&gt;f6b4ee175c9735c37b809a9832f818f1a7750cce3ab7228c6a590d9942c030fc&lt;/code&gt;</div>

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