Seeed Studio has launched two Nordic nRF52840-based Bluetooth LE e-paper kits preloaded with the OpenDisplay open-source firmware for e-paper displays and supporting Home Assistant integration. The OpenDisplay 4.26″ Mono features a 4.26-inch monochrome/grayscale display with 800×480 resolution and partial refresh support, while the OpenDisplay 7.3″ Color Kit is equipped with a 7.3-inch Spectra 6 color e-paper with the same resolution. Both are powered by a 2,000 mAh battery and feature a few buttons for control and reset. Seeed Studio OpenDisplay kits specifications: MCU – Nordic Semi nRF52840 CPU – Arm Cortex-M4F microcontroller @ up to 64 MHz Memory – 256 KB SRAM Storage – 1 MB flash Wireless – Bluetooth LE 5.0, NFC, 802.15.4 connectivity Display OpenDisplay 4.26″ Mono Kit 4.26-inch monochrome ePaper Black and white (default); optional 4-gray mode Partial Refresh – Supported in black-and-white mode only Resolution – 800 × 480 Controller – Seeed XIAO EN05 driver board […]
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Read more here: https://www.cnx-software.com/2026/11/03/seeed-studio-4-26-mono-and-7-3-color-e-paper-kits-opendisplay-firmware/
