ESP32-S31 Mini Development Board based on ESP32-S31NRV16/32 dual-core processor

ESP32-S31 Mini Development Board based on ESP32-S31NRV16/32 dual-core processor

$9.9

Brand：SpotPear

SKU：020819900000

Date：2026-11-02 15:46

Part Number：

ESP32-S31-Zero-N16R16 ESP32-S31-Zero-N16R16-M ESP32-S31-Zero-N16R32 ESP32-S31-Zero-N16R32-M ESP32-S31-Zero-N32R16 ESP32-S31-Zero-N32R16-M ESP32-S31-Zero-N32R32 ESP32-S31-Zero-N32R32-M

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ESP32-S31-Zero Mini Development Board: 32-bit dual-core RISC-V processor, 320MHz clock speed, supports 2.4GHz Wi-Fi 6 and Bluetooth, with an onboard USB Type-C interface.

ESP32-S31-Zero Mini Board

Based on the ESP32-S31 series chips, this design breaks out most of the pins within a compact form factor.

Utilizes a half-hole (castellated hole) process, allowing it to be soldered onto a custom board.

Product Features

The ESP32-S31-Zero is a compact, multi-protocol development board based on the Espressif ESP32-S31 series chip. It integrates wireless communication, firmware downloading capabilities, power conversion, and common expansion interfaces. Featuring a high-performance dual-core processor and on-package PSRAM, it provides the necessary resources for networked control, graphical user interfaces, and embedded data processing.

Equipped with a high-performance dual-core 32-bit RISC-V processor with a maximum clock frequency of 320MHz, and featuring an integrated independent low-power RISC-V processor.
Integrates 512KB of high-performance SRAM, 32KB of low-power SRAM, and 320KB of ROM
Available in two chip versions—ESP32-S31NRV16 and ESP32-S31NRV32—featuring 16MB and 32MB of integrated Octal SPI PSRAM, respectively.
Supports 2.4GHz Wi-Fi 6 and is compatible with IEEE 802.11 b/g/n/ax; also supports Bluetooth 5.4 LE, Classic Bluetooth, and IEEE 802.15.4, enabling development for Zigbee and Thread applications.
Features an onboard CA-C03 SMD antenna and an IPEX-1 antenna connector; the antenna connection method can be configured via the RF matching circuit.
Equipped with a USB Type-C port for power supply, USB Serial/JTAG programming, log output, and debugging.
Onboard WS2812B-1010 addressable RGB LED, plus BOOT (download) and RESET buttons
Display, touch, SD/MMC, and GPIO signals are routed out via a 40-pin board-to-board connector, facilitating connection to an expansion baseboard.
Provides accompanying examples covering development topics such as GPIO, RGB LEDs, buttons, UART, I2C, Wi-Fi, and BLE.

Version Selection

The "X" in the model number represents the PSRAM capacity, with support for two configurations: 16MB and 32MB.

ESP32-S31 is designed specifically for IoT

Equipped with a high-performance dual-core 32-bit RISC-V microcontroller with a clock frequency of up to 320MHz, this solution supports comprehensive multi-protocol connectivity and is specifically designed for advanced Internet of Things (IoT) applications that require extensive connectivity capabilities and a rich human-machine interface (HMI).

Supports Wi-Fi and Bluetooth

Supports 2.4GHz Wi-Fi 6, Bluetooth Low Energy (BLE) 5.4, Bluetooth Classic, Thread, and Zigbee, and includes a Gigabit Ethernet MAC. It also supports LE Audio, Bluetooth-based positioning, and mesh networking, making it suitable for applications such as the Internet of Things (IoT), wireless audio, and human-machine interaction.

Supports ESP-IDF

Comes with a comprehensive SDK and open-source resources and tutorials, making it easy to get started and quickly integrate into your applications.

Resource Overview

ESP32-S31 dual-core processor
Operating frequency up to 320MHz
USB Type-C port
MP1605GTF-Z
DC-DC
Flash chip
WS2812 (LED)

BOOT button
RESET button
40-pin board-to-board expansion interface
Ceramic antenna
IPEX-1 Antenna Connector
USB Host Solder Pads

Pin Definitions

Supports the connection of various peripherals; additional expansion devices can be integrated via GPIO headers.

Product Dimensions

[] ESP32-S31-Zero-N16R(16/32)

[] ESP32-S31-Zero-N16R(16/32)-M

[] ESP32-S31-Zero-N32R(16/32)

[] ESP32-S31-Zero-N32R(16/32)-M

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