ESP32-S31-WROOM-3 V1.1 Module
COMPONENTS ONLY – FOR PROFESSIONAL INTEGRATION - MADE IN CHINA
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Sold as a component
This is a bare electronic module intended for integration into your own device or project. It is not a finished consumer product and has no enclosure, power supply or user interface. Responsibility for the compliance and safety of the final application rests with the integrator.
Key specs
The ESP32-S31-WROOM-3 is Espressif's new-generation wireless module built around a dual-core 32-bit RISC-V microprocessor running at up to 320 MHz. On a single module it combines 2.4 GHz Wi-Fi 6 (802.11b/g/n/ax), Bluetooth 5.4 LE with Bluetooth Classic, and an IEEE 802.15.4 radio supporting Thread 1.4 and Zigbee 3.0 - one part that covers Wi-Fi, BLE and Matter-oriented mesh protocols.
It exposes 54 GPIOs and a wide peripheral set including USB 2.0 High-Speed OTG, CAN FD, Ethernet MAC, SD/MMC host, UART, SPI, I2C, I2S, ADC/DAC and touch sensing, with 512 KB of SRAM plus 32 KB low-power SRAM on chip. Supply range 3.0-3.6 V, industrial temperature range -40 to +85 °C.
The full datasheet and reference documentation are linked below.
This module is sold exclusively as an electronic component for integration by customers with appropriate technical knowledge. It is not a finished consumer product: it ships as a bare module with no enclosure, power supply, cabling or user interface, and is not intended for standalone end use. The integrator is responsible for the conformity of the finished device, including the safety and radio/EMC assessment of the final application. Certifications held by the module manufacturer apply to the module itself and do not replace the compliance obligations of the final product.