ESP32-S31 (espressif.com) AI

Espressif’s ESP32-S31 is a dual-core 32-bit RISC-V SoC (up to 320 MHz) with multi-protocol connectivity (Wi‑Fi 6, Thread/Zigbee via 802.15.4, Bluetooth 5.4 LE, Bluetooth Mesh, and an Ethernet MAC), plus 512 KB SRAM and external PSRAM support. The chip targets edge AI and multimedia/HMI projects with camera and parallel LCD interfaces, touch sensing, image/audio acceleration, and security features including TRNG, RAM-based PUF, secure boot, encryption, and cryptographic accelerators.