Espressif 
CPU and OnChip Memory
• ESP32-S2 or ESP32-S2R2 embedded, Xtensa®
single-core 32-bit LX7 microprocessor, up to 240
MHz
• 128 KB ROM
• 320 KB SRAM
• 16 KB SRAM in RTC
• 2 MB embedded PSRAM (ESP32-S2R2 only
WiFi
• 802.11 b/g/n
• Bit rate: 802.11n up to 150 Mbps
• A-MPDU and A-MSDU aggregation
• 0.4 µs guard interval support
• Operating frequency: 2412 ~ 2484 MHz
Peripherals
• GPIO, SPI, LCD, UART, I2C, I2S, Camera interface, IR, pulse counter, LED PWM, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0), full-speed USB OTG, ADC, DAC, touch sensor, temperature sensor
Integrated Components on Module
• 40 MHz crystal oscillator
Antenna Options
• External Antenna Connector(ESP32-S2-SOLO-2U)
Operating Conditions
• Operating voltage/Power supply: 3.0 ~ 3.6 V
• Operating ambient temperature: –40 ~ 85 °C
