Seeed Launches E-Paper Display Kits With OpenDisplay
Two preloaded e-paper kits, a 4.26-inch monochrome model and a 7.3-inch color model, run on open-source OpenDisplay firmware.
Updated on Nov. 4, 2026 in Consumer Electronics
Seeed Studio has launched two e-paper display kits preloaded with OpenDisplay firmware, a 4.26-inch monochrome display priced at $39.90 and a 7.3-inch color display priced at $75.90. Both kits run on Nordic Semiconductor's nRF52840 microcontroller and include a rechargeable 2,000mAh battery with USB Type C charging.
Why it matters
The kits pair low-cost hardware with community-supported open-source software, giving users a ready-to-use option for displaying images and information on e-paper screens. Their support for Home Assistant and a Python API extends their use to smart-home and custom projects.
The 4.26-inch monochrome kit offers an 800×480 pixel resolution, while the 7.3-inch color kit uses a Spectra 6 panel that displays six colors. Both are built around a 64MHz Arm Cortex-M4F processor with 256KB SRAM and 1MB flash, and the monochrome model communicates over Bluetooth Low Energy without Wi-Fi.
The players
Seeed Studio
Seeed Studio is a hardware company that produces development boards, sensors, and electronics kits for makers and developers.
Nordic Semiconductor
Nordic Semiconductor is a Norwegian fabless chipmaker known for its low-power wireless microcontrollers, including the nRF52840 used in these kits.
The details
Users can send images to the displays through a web browser using OpenDisplay's Toolbox, with Chrome or Edge supporting Web Bluetooth. The open-source community provides the firmware, browser interfaces, Python API, and Home Assistant support, though the display hardware itself is not open source.
Timeline
Launched on November 4, 2026.
The Tech Race
The kits build on Nordic Semiconductor's nRF52840, a chip that has become a common foundation for low-power wireless hardware, and they extend that platform into ready-made e-paper displays. This positions open-source display hardware against proprietary e-paper products from larger electronics vendors.
Buyers can use the monochrome kit to show updating information over long periods, with a projected two-year battery life at 15-minute refreshes. The color kit's projected one-year battery life at two-hour updates suits users who want colorful displays that change less often.
The takeaway
Battery life depends heavily on how often a display refreshes, so choosing a longer update interval is the most direct way to stretch a kit's runtime. Readers weighing a purchase should match the monochrome or color model to how often their information actually changes.
Further reading
Explore more Consumer Electronics coverage for context on devices like these.
