Espressif ESP32 S2 WROOM(-1) 4MB Module

The ESP32-S2-WROOM and ESP32-S2-WROOM-I are versatile Wi-Fi MCU modules with powerful features and a wide range of peripheral interfaces, suitable for applications such as wearable electronics and smart home devices. The ESP32-S2-WROOM uses an onboard PCB antenna, while the ESP32-S2-WROOM-I connects to an external antenna via a connector. Both modules are equipped with 4 MB of external SPI flash, and the information in this document applies to both modules.

Features

CPU and On-chip Memory

• Built-in ESP32-S2 chip, Xtensa® single-core 32-bit LX7 microprocessor, supporting clock frequencies up to 240 MHz
• 128 KB ROM
• 320 KB SRAM
• 16 KB RTC SRAM

Wi-Fi

• 802.11 b/g/n
• Data rates up to 150 Mbps in 802.11n mode
• Frame aggregation (TX/RX A-MPDU, RX A-MSDU)
• 0.4 µs guard interval
• Operating channel center frequency range: 2412 ~ 2484 MHz

Peripherals

• GPIO, SPI, UART, I2C, I2S, LCD interface, Camera interface, IR, pulse counter, LED PWM, TWAI® (ISO 11898-1 compliant, i.e., CAN 2.0 specification), full-speed USB OTG, ADC, DAC, touch sensor, temperature sensor
  *Note: For detailed information on module peripherals, refer to the ESP32-S2 Series Chip Technical Reference Manual.

Module Integrated Components

• 40 MHz integrated crystal oscillator
• 4 MB SPI flash

Antenna Options

• Onboard PCB antenna (ESP32-S2-WROOM)
• External antenna via connector (ESP32-S2-WROOM-I)

Operating Conditions

• Operating voltage/power supply voltage: 3.0 ~ 3.6 V
• Operating temperature: –40 ~ 85°C

Certifications

• RF Certifications: Refer to ESP32-S2-WROOM and ESP32-S2-WROOM-I certificates
• Environmental Certifications: RoHS/REACH

Testing

• HTOL, HTSL, uHAST, TCT, ESD
  

ESP32-S2-WROOM(-I) Module Comparison

Applications

• General low-power IoT sensor hub
• General low-power IoT data logger
• Camera video streaming
• OTT TV box/set-top box devices
• USB devices
• Voice recognition
• Image recognition
• Mesh networks
• Home automation
• Smart home control panels
• Smart buildings
• Industrial automation
• Smart agriculture
• Audio equipment
• Health/medical/caregiving
• Wi-Fi toys
• Wearable electronics
• Retail & Catering
• Smart POS applications