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WSAL18136 – 2.7inch NFC-Powered e-Paper Module/en

Aus JW Tech Wiki

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 2.7inch passive NFC-powered e-paper module displays content without its own power source. Image information is transmitted wirelessly via NFC from a smartphone or NFC reader and displayed on the screen.

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Technical overview

  • Display resolution: 264 x 176 pixels
  • Dot pitch: 0.217 mm x 0.217 mm
  • Display color: Black/White
  • Refresh time: approx. 6 s
  • Viewing angle: greater than 170°
  • ABS plastic housing with good strength and toughness
  • No backlight required; e-paper retains last content for extended periods without power
  • Suitable for equipment labels, shelf labels, and information display
  • Power supplied solely via NFC wireless energy transfer
  • Companion Android app for editing and managing display content

Notes and version constraints

  • According to the source, the provided app does NOT support Samsung, Google, or Sony smartphones.
  • NFC functionality must be enabled on the phone before use.
  • Do not move the device during transmission and refresh because NFC communication range is limited.
  • Rev2.2 uses a new NFC chip and fast flashing method; update the latest mobile app and ST25R3911B NFC Board program before use.
  • Image files must be monochrome BMP format and exactly match the display resolution; otherwise display may fail.
  • After unpacking, maximum storage time is 72 hours at 20°C ± 5°C and 50% RH ± 5% RH; assemble within this window.

Source and revision record

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