DFRobot - ESP32-S2-WROOM Module (PCB Antenna, 4MB Flash, Wi-Fi & USB OTG)

The ESP32-S2-WROOM Wi-Fi Module combines high performance (240MHz CPU) with ultra-low power consumption, making it perfect for industrial IoT, smart home devices, and battery-powered applications. With 4MB flash, USB OTG, and built-in touch sensors, it simplifies prototyping while meeting FCC/CE compliance.

High-Speed 240MHz CPU with 4MB Flash

Powered by the Xtensa® LX7 core, the module handles complex tasks like real-time data processing and edge AI inference, while 4MB flash ensures ample storage for firmware.

Ultra-Low Power Modes for Battery Efficiency

Dynamic voltage scaling and RTC sleep modes extend battery life in wireless sensors and portable devices, with wake-up via touch sensors or threshold triggers.

Rich Peripherals: USB OTG, Touch, LCD & Camera

43 GPIOs support SPI, I2C, UART, PWM, and LCD/camera interfaces, while USB OTG enables direct host/device communication without extra chips.

Industrial-Grade Reliability

Operates reliably in -40°C to 85°C environments with FCC/CE/SRRC certifications, ideal for harsh conditions and mass production.

Note: This module is recommended for developers currently. The peripheral circuit needs to be soldered when using, 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.

• 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

• 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

• 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
• Operating Voltage/Power Voltage: 3.0 ~ 3.6 V
• Suggested Operating Temperature: –40 ~ 85 °C
• Package Size: (18 x 31 x 3.3) mm

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

• HTOL/HTSL/uHAST/TCT/ESD

• ESP32-S2-WROOM Wi-Fi Module (PCB antenna) x1