Core Module

ESP-WROOM-32 (4MB Flash)

CPU

Xtensa LX6 Dual-Core 32-bit

Clock Speed

160MHz (240MHz overclockable)

Wireless

WiFi 802.11 b/g/n + Bluetooth 4.2 BR/EDR/BLE

Operating Voltage

3.3V (IO) / 5V (USB input)

Input Voltage

5V via Micro USB or Vin pin (7-12V)

Current Consumption

80mA (normal), 500mA (WiFi peak)

Digital I/O

30 (Arduino-compatible layout)

Analog Input

10x 12-bit ADC (0-3.3V)

SRAM

520KB (320KB data, 200KB instruction)

Flash Memory

4MB (SPIFFS supported)

USB-Serial

CH340G

UART Interfaces

3 (UART0/1/2)

SPI/I2C/I2S

4/2/2

PWM Channels

16 (independent)

Hall Effect Sensor

Yes

Touch Sensors

10 capacitive

On-board Peripherals

LED (D13), Reset/Flash buttons

Dimensions

68.6mm × 53.4mm (UNO R3 form factor)

Weight

25g