ESP32-S31: すべてを変える新しいEspressif IoTチップ

dev.to Article - English Title: ESP32-S31: The New Espressif IoT Chip That Changes Everything Hey makers! Got some exciting news — Espressif just dropped the ESP32-S31 , their most capable IoT chip yet. And it's a pretty big deal. What's Inside CPU : RISC-V dual-core @ 320 MHz with SIMD instructions Wireless : Wi-Fi 6 (2.4 GHz), Bluetooth 5.4 (LE Audio + Classic), IEEE 802.15.4 (Thread + Zigbee) Wired : Built-in Gigabit Ethernet Memory : 512 KB SRAM + up to 250 MHz PSRAM support Security : Secure boot, memory encryption, cryptographic acceleration, TEE Protocol : Full Matter protocol support Why This Matters 1. RISC-V Architecture For the first time, Espressif chose RISC-V over Xtensa for a high-end ESP32 chip. RISC-V is an open ISA — meaning anyone can build toolchains, compilers, and libraries without vendor restrictions. The community can innovate freely. 2. All the Protocols in One Chip Wi-Fi 6 + Bluetooth 5.4 + Thread + Zigbee + Ethernet — all in one package. If you've ever wired up multiple modules just to get all these protocols, you know how game-changing this is. 3. Matter-Ready Matter is the unified smart home standard backed by Amazon, Google, Apple, and Samsung. ESP32-S31 has full Matter support, meaning devices you build will work across all major ecosystems out of the box. Perfect For Smart Home Hub : Multi-protocol in one board, Matter-ready Industrial IoT Gateway : Ethernet + Wi-Fi 6 for reliability-critical applications Edge AI Device : Dual-core 320 MHz + SIMD is enough for small AI workloads Smart Speaker / HMI : DVP camera interface and LCD support built in Price & Availability No official pricing yet, but expect it to land in the ESP32-S3 price range — which means industrial-grade IoT at hobbyist prices. The Big Picture The shift to RISC-V is the most interesting move here. It signals Espressif is opening up, letting the community build beyond what the company can do alone. For makers, this means more flexibility, more community-driven development, and ultimately more powerful projects. If you're planning a smart home or IoT gateway project for late 2026, the ESP32-S31 should be on your radar. Tags: #ESP32 #IoT #RISCV #SmartHome #Maker #WiFi6 #Bluetooth #Thread #Zigbee #Matter dev.to Article - English Title: ESP32-S31: The New Espressif IoT Chip That Changes Everything Hey makers! Got some exciting news — Espressif just dropped the ESP32-S31 , their most capable IoT chip yet. And it's a pretty big deal. What's Inside CPU : RISC-V dual-core @ 320 MHz with SIMD instructions Wireless : Wi-Fi 6 (2.4 GHz), Bluetooth 5.4 (LE Audio + Classic), IEEE 802.15.4 (Thread + Zigbee) Wired : Built-in Gigabit Ethernet Memory : 512 KB SRAM + up to 250 MHz PSRAM support Security : Secure boot, memory encryption, cryptographic acceleration, TEE Protocol : Full Matter protocol support Why This Matters 1. RISC-V Architecture For the first time, Espressif chose RISC-V over Xtensa for a high-end ESP32 chip. RISC-V is an open ISA — meaning anyone can build toolchains, compilers, and libraries without vendor restrictions. The community can innovate freely. 2. All the Protocols in One Chip Wi-Fi 6 + Bluetooth 5.4 + Thread + Zigbee + Ethernet — all in one package. If you've ever wired up multiple modules just to get all these protocols, you know how game-changing this is. 3. Matter-Ready Matter is the unified smart home standard backed by Amazon, Google, Apple, and Samsung. ESP32-S31 has full Matter support, meaning devices you build will work across all major ecosystems out of the box. Perfect For Smart Home Hub : Multi-protocol in one board, Matter-ready Industrial IoT Gateway : Ethernet + Wi-Fi 6 for reliability-critical applications Edge AI Device : Dual-core 320 MHz + SIMD is enough for small AI workloads Smart Speaker / HMI : DVP camera interface and LCD support built in Price & Availability No official pricing yet, but expect it to land in the ESP32-S3 price range — which means industrial-grade IoT at hobbyist prices. The Big Picture The shift to RISC-V is the most interesting move here. It signals Espressif is opening up, letting the community build beyond what the company can do alone. For makers, this means more flexibility, more community-driven development, and ultimately more powerful projects. If you're planning a smart home or IoT gateway project for late 2026, the ESP32-S31 should be on your radar. Tags: #ESP32 #IoT #RISCV #SmartHome #Maker #WiFi6 #Bluetooth #Thread #Zigbee #Matter