Espressif 
CPU and OnChip Memory
• At the core of the module is the ESP32-D0WD chip. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the CPU clock frequency is adjustable from 80 MHz to 240 MHz.
• 16 MB (Quad SPI) FLASH
• 8 MB (Quad SPI) PSRAM
WiFi
• 802.11 b/g/n (802.11n up to 150 Mbps)
• A-MPDU and A-MSDU aggregation and 0.4 µs guard in terval support
Bluetooth
• Bluetooth v4.2 BR/EDR and Bluetooth LE specification
• NZIF receiver with –97 dBm sensitivity
• Class-1, class-2 and class-3 transmitter
• AFH
• CVSD and SBC
Peripherals
• 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
Antenna Options
• Onboard PCB antenna (ESP32-WROVER-B-N8R8)
Operating Conditions
• Operating voltage/Power supply: 3.0 ~ 3.6 V
• Operating ambient temperature: –40 ~ 85 °C
