ESP32-WROOM-DA Development Kit 42-Pin – WiFi + Bluetooth ESP32 Development Board

The ESP32-WROOM-DA Development Kit 42-Pin is designed for developers who need Wi-Fi, Bluetooth, and a large number of accessible ESP32 pins in a convenient development-board format.

The underlying ESP32-WROOM-DA module incorporates the ESP32-D0WD-V3, 520KB SRAM, 448KB ROM, and an onboard SPI flash configuration depending on the module variant. Espressif lists 4MB, 8MB, and 16MB flash variants, with no PSRAM on the WROOM-DA module.

The ESP32 platform provides extensive peripheral functionality, including UART, SPI, I2C, I2S, ADC, DAC, PWM, capacitive touch, SDIO, and GPIO. This makes the board suitable for connecting sensors, displays, storage devices, motor controllers, relays, communication modules, and other peripherals.

Features

• ESP32-WROOM-DA based development board
• Dual-core 32-bit Xtensa LX6 processor
• Up to 240MHz CPU frequency
• 2.4GHz Wi-Fi 802.11 b/g/n
• Bluetooth 4.2 and Bluetooth Low Energy
• 42-pin development-board layout
• Dual complementary PCB antennas
• Multiple GPIO pins and peripheral interfaces
• ADC and DAC support
• PWM support
• UART, SPI, I2C and I2S support
• Capacitive touch sensing
• USB programming interface on compatible development-board revisions
• Suitable for Arduino, ESP-IDF and other ESP32 development environments

Applications

• IoT devices
• Wi-Fi sensor networks
• Smart home automation
• Robotics
• Wireless controllers
• Environmental monitoring
• Data logging
• Bluetooth projects
• Web server projects
• Smart appliances
• Industrial control prototypes
• Remote monitoring systems
• Embedded wireless applications

How to Use

1. Connect the development board to a computer using its USB interface and a suitable data cable.
2. Install the required ESP32 board support package in Arduino IDE, PlatformIO, ESP-IDF, or your preferred development environment.
3. Select the appropriate ESP32 development-board configuration.
4. Select the corresponding serial/COM port.
5. Connect sensors or peripherals to the required GPIO pins.
6. Upload your firmware through the USB/UART programming interface.
7. Use the serial monitor for debugging and monitoring.
8. Configure Wi-Fi or Bluetooth functionality according to your application.

Important Notes

• 42-pin refers to the development-board header layout; it does not mean all 42 positions are independent GPIOs.
• ESP32 GPIO operates at 3.3V logic. Do not directly apply 5V signals to GPIO pins.
• Some GPIOs are used as boot-strapping pins or have other special functions. Check the pinout before assigning them to external hardware.
• GPIO34–GPIO39 on the classic ESP32 are input-only and should not be configured as normal digital outputs.
• Avoid using pins connected to the module's internal flash or other system functions.
• USB connector and USB-to-UART chip may vary according to the development-board manufacturer.
• Flash capacity is module/stock dependent; verify the actual board before configuring a fixed flash size.
• Motors, relays, solenoids, and other high-current devices should be controlled through appropriate driver circuits rather than directly from GPIO pins.
• The ESP32-WROOM-DA module itself requires a 3.0–3.6V supply; development boards may include their own power regulation.
• Espressif currently marks the ESP32-WROOM-DA as End of Life, so availability may depend on existing stock or compatible development-board production.

Package Includes

• 1 × ESP32-WROOM-DA Development Kit 42-Pin