Makerfabs Released a 7.5-inch Four-Color E Ink Board
The new ESP32-S3 development board enables low-power displays and voice-controlled interfaces for IoT projects.
Updated on Oct. 1, 2026 in Semiconductors
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Makerfabs has released a 7.5-inch electrophoretic display board featuring a four-color E Ink screen and an ESP32-S3 controller. The device is now available for purchase as an off-the-shelf development kit for IoT and dashboard applications.
Why it matters
The board targets information display and voice-controlled interface design by integrating processing, audio, and motion sensing into a low-power package. It provides a modular foundation for engineers developing sustainable or intermittently updated data dashboards.
The board features a 800 x 480 four-color E Ink display driven by a JD79665 controller and an ESP32-S3R8 SoC running at 240MHz. It includes 8MB of PSRAM and 16MB of SPI flash, alongside a six-axis QMI8658A motion sensor and a four-microphone array.
The players
Makerfabs
An electronics manufacturer specializing in open-source hardware, development boards, and prototyping components for the internet-of-things industry.
The details
The development board utilizes an ESP32-S3 controller to manage system peripherals via SPI (Serial Peripheral Interface), USB, and audio bus interfaces. The E Ink display employs electrophoretic technology—a process where charged pigment particles move in an electric field to form images—to support black, white, red, and yellow color outputs. A dedicated four-microphone array routes audio data through an ES7210 ADC (analog-to-digital converter) to facilitate voice input for interactive dashboards.
Timeline
October 1, 2026: The board was made available for purchase.
The Tech Race
The board follows a pattern set by the widespread adoption of the ESP32-S3 microcontroller architecture in hobbyist and industrial IoT development. It extends this ecosystem by integrating multi-modal sensing and electrophoretic display drivers on a single unit.
The development board is available for purchase now and is intended for engineers building low-power information displays or voice-controlled dashboards. Users will need to supply their own software implementation to interface with the display and sensor array via the onboard USB Type-C port.
The takeaway
This release provides a pre-integrated solution for engineers needing a four-color E Ink display with voice and motion inputs. Watch for community-developed firmware and libraries that leverage the board's ESP32-S3 controller for specific low-power display tasks.
Further reading
For more on the hardware powering modern IoT devices, visit the Semiconductors section.
Source note: This article includes information reported by LinuxGizmos.
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