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5/8/2026

ESP32-S31: The New Espressif IoT Chip That Changes Everything
Short summary
Espressif released the ESP32-S31, its first high-end chip using the open RISC-V ISA. It integrates Wi-Fi 6, Bluetooth 5.4, Thread, Zigbee, and Ethernet with full Matter protocol support, enabling single-board smart home hubs and industrial IoT gateways. The RISC-V shift signals Espressif's move toward community-driven ecosystem development.
- •First high-end Espressif chip on open RISC-V ISA instead of proprietary Xtensa
- •Multi-protocol in one package: Wi-Fi 6, Bluetooth 5.4, Thread, Zigbee, Ethernet
- •Full Matter protocol support for seamless smart home ecosystem compatibility
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