Espressif – ESP32-S31 Wireless SoC with Ethernet: Espressif, known for its wireless SoCs, recently unveiled the ESP32-S31 as a high-performance multi-protocol connectivity solution – engineering sampling has started now.
This new SoC provides the foundation for integrating wireless interfaces – such as Bluetooth 5.4 LE & Classic, Wi-Fi 6 (2.4 GHz), and ZigBee – along with a 1 Gbps Ethernet interface into HMI applications. As a new generation successor to the “classic” ESP32, which was the last to support a wired Ethernet interface, this new SoC builds on its predecessor’s capabilities.
Espressif – A quick glance at the ESP32-S31 wireless SoC with ethernet
With a dual-core RISC-V main core (up to 320 MHz) and 512 kB of integrated SRAM, as well as a 250 MHz 8-bit DDR PSRAM interface for RAM expansion and 60 GPIOs, the ESP32-S31 is suitable for
HMI Solutions
The DVP camera interface (8 to 16-bit) and the flexible LCD/TFT controller (8 to 24-bit parallel RGB, I8080, MOTO6800) allow for the connection of both – cameras and high-resolution displays. Color space conversions between RGB565, YUV420, and YUV411 are also supported. Encoders for JPEG, PPA, and 2D-DMA are available for efficient image processing and the development of user interfaces.
Thanks to the integrated capacitive touch peripherals with up to 14 channels, modern user interface concepts can be implemented directly.
AI Applications
Artificial intelligence is already being used in innovative HMIs—for example, in speech recognition. Espressif has already addressed this area by providing software support for its current SoC families. The company plans to support the ESP-IDF, as well as extensions such as ESP-Matter and ESP Private Agents (for using popular LLMs).
For evaluation purposes, Espressif also offers kits such as the ESP32-S31-Korvo-1 and the ESP32-S31-Function-CoreBoard-1 with display, camera, and audio interfaces, which allow you to test the ESP32 S31’s HMI, audio, and AI features directly.
Both kits, as well as the WROOM modules, are currently available as engineering samples and are therefore ideal for starting now in your next poduct development.
Summary
With the ESP32-S31, Espressif is expanding its portfolio with a SoC that supports both Ethernet and the standard wireless interfaces (Wi-Fi 6, Bluetooth 5.4, IEEE 802.15.4 for Zigbee/Thread) and also provides extensive features for HMI and audio applications. The first modules and development kits are already available as engineering samples; mass production of the ESP32 S31 is underway, and widespread availability through the usual distribution channels is being rolled out step by step.
Stay informed—we’ll be happy to keep you updated on the launch of the ESP32-S31. Contact us directly now or submit your inquiry using the form below. We’ll get back to you right away.
