ESP32 WROOM DEVKIT V1 30 Pins

The ESP32 WROOM DEVKIT V1 30 Pins is a powerful, low-cost microcontroller with integrated WiFi and Bluetooth. It features a dual-core processor, making it ideal for IoT projects, wearable electronics, and smart home applications.

Key Features

• Dual-core Xtensa LX6 32-bit processor up to 240MHz
• Built-in WiFi 802.11 b/g/n for wireless connectivity
• Bluetooth 4.2/BLE support for wireless peripherals
• 30+ programmable GPIO pins with multiple functions
• 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 with WiFi cloud connectivity
• Smart home devices and automation hubs
• Wearable electronics with Bluetooth LE
• WiFi-enabled sensors and data loggers
• Bluetooth controllers and wireless peripherals
• Web server projects with built-in HTTP support
• Real-time monitoring with dual-core processing

Pinout

• VIN: 5V input (regulated to 3.3V)
• 3.3V: Regulated 3.3V output (max 500mA)
• GND: Ground pins
• GPIO: General purpose I/O (3.3V logic)
• TX/RX: UART serial communication
• SCL/SDA: I2C bus pins
• MOSI/MISO/SCK: SPI interface

Important Notes

• GPIO pins use 3.3V logic – use level shifters for 5V devices
• Install ESP32 board package in Arduino IDE before use
• Supports MicroPython, ESP-IDF, and Arduino frameworks
• Some pins have special functions during boot – check pinout diagrams
• Built-in Hall effect sensor and temperature sensor available