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ESP32-S2-WROVER Wi-Fi Module – 4MB Flash, 2MB PSRAM, 240MHz (PCB Antenna)

$3.50
SKU: DFR0743-WROVER
WiFi MCU module with 42 pins, 4MB flash, 2MB PSRAM, USB OTG. Ideal for audio/video processing. Requires soldering, developer use recommended.
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Introduction

ESP32-S2-WROVER Wi-Fi Module integrates a high-performance wireless microcontroller with expanded memory for advanced IoT and embedded designs. Built around the ESP32-S2 architecture, this compact wireless computing module combines a 240MHz Xtensa LX7 processor, 4MB SPI flash, and 2MB PSRAM to support complex firmware, multimedia data handling, and responsive real-time control. The integrated PCB antenna and comprehensive peripheral interfaces make this Wi‑Fi microcontroller module suitable for gateways, multimedia endpoints, and connected control systems where stable wireless networking and substantial processing capability are required.

Note: This module is recommended for developers currently. The peripheral circuit needs to be soldered when using it, and few peripheral interfaces may not perform the full functionality of the sample code. There are still bugs that have to be found and fixed.


High-Performance 240MHz LX7 Processing Core

ESP32-S2-WROVER integrates a single‑core 32‑bit Xtensa LX7 processor running at up to 240MHz, providing strong computing capability for embedded networking and data‑intensive workloads. This wireless MCU module efficiently handles real‑time sensor acquisition, audio pipelines, display control, and gateway communication tasks. Combined with hardware acceleration and optimized instruction execution, the architecture enables responsive firmware performance for IoT control nodes, smart interfaces, and connected edge devices that require consistent throughput and reliable task scheduling.


Expanded Memory for Complex Embedded Applications

This Wi‑Fi development module incorporates 4MB SPI flash and 2MB PSRAM, enabling larger firmware images, buffer management, and multimedia processing tasks. The extended memory architecture benefits embedded networking projects that require image buffering, audio data pipelines, or web interface resources. Developers working on IoT gateway firmware, interactive displays, or data‑logging systems gain increased flexibility for program storage and temporary data caching, allowing demanding embedded software stacks to operate efficiently.


Comprehensive Peripheral and Interface Support

This wireless IoT controller board supports a broad range of integrated interfaces including GPIO, SPI, UART, I2C, I2S, USB OTG, PWM, ADC, DAC, and capacitive touch sensing. Additional hardware capabilities such as LCD and camera interfaces allow multimedia and human‑machine interface development within compact embedded systems. The versatile peripheral set enables integration with displays, sensors, storage modules, and control electronics, making the module suitable for smart terminals, industrial monitoring nodes, and interactive embedded platforms.


Energy‑Efficient Wireless Connectivity

This IoT Wi‑Fi communication module supports IEEE 802.11 b/g/n wireless networking with data rates up to 150Mbps. Integrated low‑power technologies including fine‑grained clock gating and dynamic voltage and frequency scaling reduce power consumption while maintaining processing performance. Such efficiency makes the embedded wireless platform suitable for battery‑powered or energy‑constrained systems, including remote sensing nodes, portable connected devices, and distributed IoT infrastructure requiring stable wireless communication.


Typical implementation scenarios include IoT gateways, multimedia processing terminals, touch‑based control interfaces, and wireless sensing nodes. The combination of a high‑speed LX7 processor, expanded memory resources, and diverse peripheral connectivity enables this compact Wi‑Fi embedded module to function as a capable control and communication engine for modern connected electronics.

Features

  • Xtensa LX7 single‑core 32‑bit processor running up to 240MHz
  • Integrated 4MB SPI Flash and 2MB PSRAM
  • Supports IEEE 802.11 b/g/n Wi‑Fi with data rates up to 150Mbps
  • Rich peripheral interfaces including GPIO, SPI, UART, I2C, I2S, PWM, ADC, and DAC
  • USB OTG support for expanded connectivity
  • Capacitive touch sensing and temperature sensor integration
  • LCD and camera interface support for multimedia applications
  • Advanced security features including Secure Boot, Flash Encryption, AES, SHA, and RSA
  • Multiple low‑power operating modes with dynamic voltage and frequency scaling
  • Compact module with integrated PCB antenna
  • Applications

  • IoT gateways
  • Audio processing
  • Video streaming
  • Touch interface projects
  • Specification

    MCU

  • Built-in ESP32-S2 chip, Xtensa® single-core 32bit LX7 microcontroller, up to 240MHz
  • Support multiple low-power modes: fine-grained clock gating, dynamic voltage and frequency scaling
  • Security: eFuse, Secure Boot, Flash Encryption, Digital Signature, Integrated AES, SHA and RSA algorithms
  • 128 KB ROM
  • 320 KB SRAM
  • 16 KB RTC SRAM
  • WiFi

  • 802.11 b/g/n
  • Data rate up to 150Mbps
  • TX/RX A-MPDU, RX A-MSDU
  • 0.4µs guard interval
  • Center frequency range of operating channel: 2412 ~ 2484 MHz
  • Hardware

  • Port: GPIO, SPI, UART, I2C, I2S, LCD interface, Camera interface, IR, pulse counter, LED, PWM, USB1.1, ADC, DAC, capacitive touch sensor, temperature sensor
  • 40 MHz Oscillator
  • 4 MB SPI Flash
  • 2 MB PSRAM
  • Operating Voltage/Power Voltage: 3.0 ~ 3.6 V
  • Suggested Operating Temperature: –40 ~ 85 °C
  • Package Size: (18 x 31 x 3.3) mm
  • Certification

  • RoHS/REACH
  • RF Certification: FCC/CE-RED/SRRC
  • Test

  • HTOL/HTSL/uHAST/TCT/ESD
  • Shipping List

  • ESP32-S2-WROVER Wi-Fi Module (PCB antenna) x1
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    ESP32-S2-WROVER Wi-Fi Module – 4MB Flash, 2MB PSRAM, 240MHz (PCB Antenna)
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