ESP32 WROOM Nodemcu 38 Pin

The ESP32 WROOM Nodemcu 38 Pin is an extended version of the ESP32 devkit with 38 pins and a NodeMCU form factor. It features dual-core processing, integrated WiFi and Bluetooth, and expanded GPIO access for demanding IoT and automation projects.

Key Features

• Dual-core Xtensa LX6 32-bit processor up to 240MHz
• 38 GPIO pins in NodeMCU form factor for expanded connectivity
• Built-in WiFi 802.11 b/g/n for wireless connectivity
• Bluetooth 4.2/BLE support for wireless peripherals
• Ultra-low power modes for battery-operated devices
• 4MB flash memory for program and data storage
• Rich peripheral interfaces including SPI, I2C, UART, ADC, DAC, PWM

Technical Specifications

Applications

• IoT applications requiring many GPIO pins
• Smart home hubs with multiple connected devices
• Advanced automation with numerous sensors and actuators
• WiFi-enabled robotics with complex control needs
• Bluetooth mesh networks and beacon applications
• Edge computing with dual-core processing power

Important Notes

• All GPIO pins use 3.3V logic – use level shifters for 5V devices
• Install ESP32 board package in Arduino IDE before use
• 38-pin variant offers more I/O than standard 30-pin version
• Some pins have boot-mode functions – consult pinout diagram
• USB-C or Micro-USB connector depending on manufacturer