ESP32 WiFi Bluetooth BLE Development Board 30 Pin

Product Description

The ESP32 Wi-Fi Bluetooth Development Board is a powerful and compact wireless microcontroller solution designed for IoT, embedded systems, automation, robotics, and smart-device applications. It integrates a high-performance dual-core Tensilica LX6 microcontroller with built-in 2.4GHz Wi-Fi, Bluetooth Classic, and Bluetooth Low Energy (BLE) connectivity.

The ESP32 integrates essential RF components including the RF balun, power amplifier, low-noise amplifier, filters, and power management circuitry, helping provide a compact and reliable wireless solution. Manufactured using TSMC 40nm low-power technology, it offers a balance of processing performance, wireless connectivity, and power efficiency.

With 240MHz dual-core processing, 520KB SRAM, 16MB Flash, multiple UART, SPI, I2C, I2S, ADC, DAC, PWM, and touch interfaces, the ESP32 can support a wide range of embedded applications. It also supports AP, STA, and AP+STA Wi-Fi modes, along with LWIP and FreeRTOS for flexible software development.

Features

• High-performance and cost-effective ESP32 solution
• Dual-core Tensilica LX6 microcontroller
• Clock frequency up to 240MHz
• Approximately 600 DMIPS processing performance
• Integrated 2.4GHz Wi-Fi
• Integrated Bluetooth Classic and BLE
• Supports Wi-Fi AP, STA, and AP+STA modes
• Integrated RF balun, power amplifier, LNA, filters, and power management
• 520KB SRAM
• 16MB Flash
• Supports LWIP protocol and FreeRTOS
• Supports Lua programming
• Onboard PCB antenna / external antenna option through IPEX
• Integrated Hall sensor
• 10 capacitive touch interfaces
• Ultra-low-noise analog amplifier
• Multiple UART, SPI, I2C, I2S, ADC, DAC, and PWM interfaces
• Supports SDIO and SD card interfaces
• Hardware-accelerated security functions
• Compact design suitable for embedded applications

Specifications

Parameter	Specification
Product Type	ESP32 Wireless MCU
CPU	Dual-Core Tensilica LX6
Clock Frequency	Up to 240MHz
Processing Performance	Up to 600 DMIPS
SRAM	520KB
Flash	16MB
Wi-Fi	2.4GHz 802.11 b/g/n HT40
Bluetooth	Classic Bluetooth + BLE
Wi-Fi Modes	AP / STA / AP+STA
UART	3
SPI	3
I2S	2
I2C	2
ADC	12 Channels
DAC	2
Capacitive Touch	10 Interfaces
Operating Voltage	2.2V – 3.6V
Operating Temperature	-40°C to +125°C
Antenna	PCB Antenna / IPEX External Antenna
SDIO	Up to 50MHz
Flash Expansion	Supports External SPI Flash up to 16MB

Design and Construction

The ESP32 is designed as a compact wireless processing solution with integrated RF and power-management components, reducing the external circuitry required for Wi-Fi and Bluetooth connectivity.

The module can be supplied with an onboard PCB antenna or an IPEX connector for an external antenna, depending on the specific board configuration. Its compact form factor makes it suitable for embedding into custom products and electronic systems.

The integrated peripheral interfaces provide flexible connection options for sensors, displays, storage devices, communication modules, and other external hardware.

Working Principle

The ESP32 combines a dual-core microcontroller with integrated wireless communication capabilities. The processor executes the application firmware while the integrated Wi-Fi and Bluetooth hardware handles wireless communication.

The Wi-Fi transceiver supports 2.4GHz 802.11 b/g/n communication and can operate in AP, STA, or AP+STA modes. Bluetooth Classic and BLE provide additional options for short-range wireless communication.

External sensors and peripherals can be connected through GPIO, UART, SPI, I2C, I2S, ADC, DAC, and PWM interfaces. The ESP32 processes the collected data and can transmit or receive information wirelessly through Wi-Fi or Bluetooth.

Peripheral Interfaces

The ESP32 provides a wide range of interfaces for embedded development:

• 3 × UART: Serial communication with external devices.
• 3 × SPI: High-speed communication with compatible peripherals.
• 2 × I2C: Connection to sensors, displays, and modules.
• 2 × I2S: Digital audio applications.
• 12 × ADC: Analog signal measurement.
• 2 × DAC: Analog signal output.
• 10 × Capacitive Touch: Touch-based input applications.
• PWM/Timer: Available through GPIO for control and timing applications.
• SDIO: Supports master/slave communication up to 50MHz.
• SD Card: Provides external storage support.

Wireless Connectivity

The ESP32 includes a 2.4GHz dual-mode wireless system supporting both Wi-Fi and Bluetooth.

The Wi-Fi section supports 802.11 b/g/n HT40 and provides AP, STA, and AP+STA operating modes. The integrated Bluetooth supports both Classic Bluetooth and BLE, making the module suitable for traditional Bluetooth communication as well as low-power wireless applications.

Security

The ESP32 includes several wireless security features, including:

• WEP
• WPA/WPA2 PSK
• WPA/WPA2 Enterprise

It also provides hardware-accelerated cryptographic functions including:

• AES
• SHA2
• Elliptic Curve Cryptography
• RSA-4096

These features help support secure communication and data processing in connected embedded applications.

Applications

• IoT Devices: Develop connected sensors and smart devices.
• Home Automation: Control lights, appliances, sensors, and security systems.
• Robotics: Provides wireless communication and processing for robotic systems.
• Industrial Automation: Suitable for connected monitoring and control systems.
• Wireless Sensor Networks: Collect and transmit sensor data wirelessly.
• Smart Home Products: Build Wi-Fi and Bluetooth-enabled devices.
• Wearable Devices: Suitable for compact BLE applications.
• Remote Monitoring: Enables wireless data transmission and system monitoring.
• Audio Applications: Suitable for compatible digital audio projects using I2S.
• Embedded Systems: Can be integrated into custom electronic products.
• Bluetooth Applications: Suitable for Classic Bluetooth and BLE projects.
• Wi-Fi Applications: Useful for web-connected and network-enabled devices.
• Security Systems: Suitable for connected monitoring and access-control projects.
• Educational Projects: Useful for learning wireless communication and embedded programming.

Package Includes

• 1 × ESP32 Wi-Fi Bluetooth Development Board / Module with 16MB Flash

Product Disclaimer

Product images are provided for representation only and may differ slightly from the actual product in terms of colour, dimensions, antenna configuration, component placement, or appearance.

Specifications may vary depending on the exact ESP32 board or module version. Please verify the pin configuration, antenna type, operating voltage, memory configuration, and electrical specifications before use.