ESP32-DEVKIT 32U CP2102 Development Board

Specifications

Core MCU

• Module: ESP32-WROOM-32U
• Chip: ESP32
• CPU: Dual-core Xtensa 32-bit LX6
• Clock Speed: 80 MHz to 240 MHz

Wireless Connectivity

• Wi-Fi: 802.11 b/g/n (2.4 GHz)
• Bluetooth: v4.2 (Classic + BLE)

Memory

• Flash: 4 MB SPI Flash (typical)
• SRAM: 520 KB
• ROM: 448 KB
• RTC Memory: Supported (for deep sleep)

USB and Interface

• USB-to-UART IC: CP2102
• USB Connector: Micro USB or USB-C (depends on board version)
• Programming: UART via USB

Power

• Operating Voltage: 3.3 V
• Input Voltage: 5 V (via USB or VIN pin)
• Current Consumption:
  • Active Wi-Fi: approximately 80 to 260 mA
  • Deep Sleep: approximately 10 µA

GPIO and Peripherals

• GPIO Pins: approximately 30 to 38 (depends on board layout)
• ADC: up to 12 channels (12-bit resolution)
• DAC: 2 channels (8-bit)
• Touch Sensors: 10 capacitive touch inputs
• PWM: supported on most GPIOs

Communication Interfaces

• UART: 3
• SPI: up to 4
• I2C: 2
• I2S: 2
• CAN (TWAI): supported

RF and Antenna

• Antenna Type: external antenna
• Connector: U.FL / IPEX

Environmental

• Operating Temperature: -40°C to +85°C

Physical

• Dimensions: approximately 52 mm x 28 mm
• Form Factor: breadboard compatible
• Pin Layout: 30-pin or 38-pin variants

Key Features

• Dual-core processor with high performance
• Integrated Wi-Fi and Bluetooth
• External antenna for extended communication range
• Onboard CP2102 USB interface (no external programmer required)
• Supports Arduino IDE, ESP-IDF, and MicroPython

Important Notes

• GPIO pins are 3.3 V only and not 5 V tolerant
• Some GPIOs are reserved for boot and strapping functions
• An external antenna connection is required for proper RF performance
• Pinout and layout may vary slightly depending on the manufacturer