The ESP32-WROOM-32 is a highly versatile development board that combines dual-mode Wi-Fi and Bluetooth capabilities with a powerful 32-bit dual-core CPU. Built using TSMC's 40nm low-power technology, this board is equipped with an integrated antenna, RF balun, power amplifier, low-noise amplifiers, filters, and a power management module, providing a compact solution that minimizes PCB space. The module is designed for IoT, wireless communication, and embedded applications, offering exceptional performance and scalability.

Key Features:

1. Microcontroller: Tensilica 32-bit Single-/Dual-core CPU Xtensa LX6 with up to 240 MHz clock speed.

2. Wi-Fi and Bluetooth: Dual-mode support (Wi-Fi 802.11 b/g/n and Bluetooth) with integrated TR switch, balun, LNA, power amplifier, and matching network.

3. Memory and Storage:

   • Flash Memory: 4 MB

   • SRAM: 520 KB

4. Multiple Interfaces: Supports UART, SPI, I2C, PWM, DAC, and ADC interfaces for extensive peripheral connections.

5. Power Efficiency: Operates in multiple sleep modes, achieving a deep sleep current of 6.5 µA, making it suitable for battery-powered applications.

6. Power Supply:

   • USB Micro B connector or VIN pin with an input voltage range of 7-12V.

   • External 3.3V power supply option.

7. Operating Temperature: −40°C to +125°C.

8. Compact Design: Small form factor with dimensions of 51.5 x 29 x 5mm.

Modes of Operation:

• AP (Access Point) Mode: Allows the device to create a Wi-Fi network that other devices can join.

• STA (Station) Mode: Connects the device to an existing Wi-Fi network.

• AP+STA Mode: Simultaneously acts as both an Access Point and a Station.

Programming and Development:

• Integrated with FreeRTOS and LwIP: Offers powerful multi-threading capabilities and TCP/IP networking.

• Support for OpenOCD debugging and Lua scripting for rapid development.

• Compatible with Arduino IDE and supports Smart Config / Airkiss one-key distribution network.

Applications:

• IoT Projects: Ideal for smart home devices, wearable tech, and embedded systems.

• Wireless Communication: Suitable for remote sensing, data acquisition, and other wireless communication needs.

• Industrial and Consumer Electronics: Used in automation systems, robotics, and electronics that require reliable connectivity.

Technical Specifications:

• Operating Voltage: 3.3V

• Input Voltage: 7-12V (with over-voltage protection up to 20V)

• Digital I/O Pins (DIO): 25

• Analog Input Pins (ADC): 6

• Analog Output Pins (DAC): 2

• UARTs: 3

• SPIs: 2

• I2Cs: 3

• Clock Frequency: 240 MHz

• Wi-Fi Security: Supports WEP, WPA/WPA2, and open networks.

Additional Features:

• Integrated Antenna and RF Module: For efficient wireless communication.

• Energy-efficient Design: Low power consumption suitable for battery-operated devices.

• Flash Layout: Organized in a single flash area with BLE support for versatile connectivity.