Built around ESP32 series of SoCs, Xtensa dualcore 32bit
LX6 microprocessor
4/8/16 MB flash available
26 GPIOs, rich set of peripherals
Onboard
PCB antenna or external antenna connector

1.1 Features
CPU and OnChip
Memory
• ESP32-D0WD-V3 or ESP32-D0WDR2-V3
embedded, Xtensa dual-core 32-bit LX6
microprocessor, up to 240 MHz
• 448 KB ROM
• 520 KB SRAM
• 16 KB SRAM in RTC
• ESP32-D0WDR2-V3 also provides 2 MB PSRAM
WiFi
• 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
• SD card, UART, SPI, SDIO, I2C, LED PWM,
Motor PWM, I2S, IR, pulse counter, GPIO,
capacitive touch sensor, ADC, DAC, TWAI®