https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL15823_%E2%80%93_E-Paper_ESP32_Driver_Board%2FenWSAL15823 – E-Paper ESP32 Driver Board/en - Versionsgeschichte2026-10-23T22:18:26ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL15823_%E2%80%93_E-Paper_ESP32_Driver_Board/en&diff=1620&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:33:31Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
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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.<br />
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== Summary ==<br />
The board drives various Waveshare SPI e-paper raw panels and provides wireless content updates over WiFi or Bluetooth. It is based on an ESP32, supports Arduino development, and ships with an open-source e-paper driver preinstalled.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL15823 WSAL15823 – Universal e-Paper Raw Panel Driver Board, ESP32 WiFi / Bluetooth Wireless]<br />
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== Technical overview ==<br />
* Key specifications: 5 V operating voltage, current draw approx. 50–150 mA; dimensions 29.46 × 48.25 mm; 4 MB flash, 520 KB SRAM, 448 KB ROM.<br />
* Pin mapping (fixed): DIN→P14 (SPI MOSI), SCLK→P13, CS→P15, DC→P27, RST→P26, BUSY→P25. No user configuration required for these connections.<br />
* Two switches: Switch 1 selects the resistor value depending on panel model (0.47 Ω for specific models, otherwise 3 Ω); flip if display quality is poor. Switch 2 toggles USB-UART power; when OFF, program upload is not possible.<br />
* Demos: local, Bluetooth, and WiFi demos are available in the Resources section; Android app source code and APK are included in the package.<br />
* Image processing: two algorithms – color-scale method and Floyd-Steinberg dithering – are selectable in the BT/WiFi demos.<br />
* Supported formats: BMP, JPEG, GIF, PNG and other common image files.<br />
* Bluetooth standard: 4.2 with BR/EDR and BLE; WiFi: 802.11b/g/n.<br />
* Typical applications: electronic price tags, name cards, and serial information displays with wireless image refresh.<br />
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== Notes and version constraints ==<br />
* Panel-specific configuration: The correct resistor value depends on the exact panel model; when uncertain, set switch 1 to “A” (3 Ω) and flip if display issues occur.<br />
* Older panel versions: Demos reference the latest panel version; for older versions, check the label on the panel’s back to determine if a different demo is needed.<br />
* Driver selection: Serial chip differs by production date (pre-July 2022: CP2102, post-July 2022: CH343). Install the matching driver.<br />
* Mac users: If the board is detected but not recognized by Arduino IDE, review system security settings and driver installation.<br />
* Bluetooth scan in app: If no devices are found, enable location services and rescan.<br />
* No pricing, warranty, certifications, or safety claims exist in the source material – these topics were intentionally omitted.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/E-Paper_ESP32_Driver_Board E-Paper ESP32 Driver Board - Waveshare Wiki]<br />
* Source revision: 110437<br />
* Captured: 2026-08-31T03:04:13+00:00<br />
* SHA-256: <code>d4f57c8d243fc777034fc7eb4257f16b81665f7ee08f0ab1f1b261a6164538cc</code></div>JWTechPublisher