Quelltext der Seite WSAL22688 – 1.9inch Segment e-Paper Module/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 ==
The 1.9-inch segment e-paper module (WSAL22688/WSAL22689) is a raw display with 91 segments and an I²C bus. It is suitable for temperature/humidity meters, humidifiers, and digital meters.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL22688 WSAL22688 – 1.9inch Segment E-Paper Raw Display, 91 Segments, I2C Bus, Ideal for Temperature and humidity meter, Humidifier, Digital Meter]
* [https://shop.jw-tech.eu/p/WSAL22689 WSAL22689 – 1.9inch Segment E-Paper Module, 91 Segments, I2C Bus, Ideal for Temperature and humidity meter, Humidifier, Digital Meter]

== Technical overview ==
* Display type: Segment e-paper raw display
* Resolution / number of segments: 91 segments
* Interface: I²C bus
* Suitable for: temperature and humidity meter, humidifier, digital meter
* Supported platforms: Raspberry Pi, Arduino UNO R3, STM32 (via STM32CubeMX)
* Available demos: C language, Python, Arduino-based
* Wiki resources: documents, demos, datasheets
* FAQ section on common e-paper questions

== Notes and version constraints ==
* No exact electrical values, commands, or compatibility lists present in the source
* Version-sensitive steps require human confirmation
* No prices, stock levels, certifications, or warranty information in the source
* Safety notes must be confirmed by the manufacturer

== Source and revision record ==
* [https://www.waveshare.com/wiki/1.9inch_Segment_e-Paper_Module 1.9inch Segment e-Paper Module - Waveshare Wiki]
* Source revision: 105689
* Captured: 2026-09-03T04:17:51+00:00
* SHA-256: <code>83d34e6c97fd71cd3f0512d4a0056ae9a08955f25d8b37c53df6da29da973b1d</code>