The ESP32-S2-SOLO is a versatile Wi-Fi MCU module with powerful features and a wide range of peripheral interfaces, suitable for applications such as wearable electronics and smart home devices. Features CPU and On-chip Memory Built-in ESP32-S2 or ESP32-S2R2 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 2 MB embedded PSRAM (only for ESP32-S2R2 chip) 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 Module Integrated Components 40 MHz integrated crystal oscillator 4 MB SPI flash Antenna Options Onboard PCB antenna (ESP32-S2-SOLO) External antenna via a connector (ESP32-S2-SOLO-U) Operating Conditions Operating voltage/power supply voltage: 3.0 ~ 3.6 V Operating temperature: 85°C version: –40 ~ 85°C 105°C version: –40 ~ 105°C (only for ESP32-S2-SOLO-H4 and ESP32-S2-SOLO-U-H4) Certifications RF Certifications: Refer to certificates Environmental certifications: RoHS/REACH Testing HTOL, HTSL, uHAST, TCT, ESD 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
