ESP32-WROOM-32E is a powerful, generic Wi-Fi MCU modules that have a rich set of peripherals. It is an ideal choice for a wide variety of application scenarios related to Internet of Things (IoT), such as embedded systems, smart home, wearable electronics, etc.ESP32-WROOM-32E comes with a PCB antenna. Features CPU and On-Chip Memory ESP32-D0WD-V3 or ESP32-D0WDR2-V3 embedded, Xtensa dual-core 32-bit LX6microprocessor, up to 240 MHz 448 KB ROM 520 KB SRAM 16 KB SRAM in RTC Wi-Fi 802.11b/g/n Bit rate: 802.11n up to 150 Mbps A-MPDU and A-MSDU aggregation 0.4 µs guard interval support Center frequency range of operating channel: 2412 ~ 2484 MHz Bluetooth® Bluetooth V4.2 BR/EDR and Bluetooth LE specification Class-1, class-2 and class-3 transmitter AFH CVSD and SBC Peripherals Up to 26 GPIOs 5 strapping GPIOs SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0) Integrated Components on Module 40 MHz crystal oscillator 4/8/16 MB SPI flash ESP32-D0WDR2-V3 also provides 2 MB PSRAM Antenna Options ESP32-WROOM-32E: On-board PCB antenna ESP32-WROOM-32UE: external antenna via a connector Operating Conditions Operating voltage/Power supply: 3.0 ~ 3.6 V Operating ambient temperature: 85 °C version: –40 ~ 85 °C 105 °C version: –40 ~ 105 °C. Note that only the modules embedded with a 4/8 MB flash support this version. Certification Bluetooth certification: BQB RF certification: See certificates for ESP32-WROOM-32E and ESP32-WROOM-32UE Green certification: REACH/RoHSTest HTOL/HTSL/uHAST/TCT/ESD