DSTIKE D-duino-32 II Dual Screen ESP32-WROOM-DA IoT Development Board
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The DSTIKE D-duino-32 II is a dual-screen ESP32 development board built around the ESP32-WROOM-DA Wi-Fi, Bluetooth, and Bluetooth LE module. With two complementary PCB antennas, dual OLED displays, RTC support, MicroSD storage, lithium battery management, and wide voltage input, it is designed for stable IoT development, data logging, monitoring projects, and outdoor electronics applications.
This board uses a customized 16MB memory version of the ESP32-WROOM-DA module, making it a strong choice for projects that require reliable wireless connectivity in challenging environments, Wi-Fi dead spots, smart home systems, industrial control, and portable monitoring devices.
ESP32-WROOM-DA with Dual Antenna Design
The ESP32-WROOM-DA module includes two PCB antennas positioned in different directions to improve wireless performance and connection stability. This makes the D-duino-32 II suitable for indoor and outdoor IoT applications where standard single-antenna modules may struggle with signal reliability.
Dual 1.3-Inch OLED Displays
The board is equipped with two 128 × 64 SH1106 1.3-inch OLED screens. This dual-display layout allows users to show monitoring data, status information, menus, sensor readings, or interactive controls at the same time, making the board useful for dashboards and standalone IoT interfaces.
Accurate RTC and MicroSD Data Logging
The built-in DS3231 real-time clock chip provides accurate timekeeping with ±2ppm precision, making it suitable for timestamped data logging and scheduled tasks. The MicroSD card slot supports FAT32 and exFAT formats, allowing large amounts of sensor or system data to be stored locally.
Powerful Portable Power Design
The integrated USB Type-C charging system supports 5V/1A charging and lithium battery management with charge and discharge efficiency of at least 85%. An independent power module supports 5V to 12V wide voltage input, helping keep outdoor and portable projects powered reliably.
Arduino and PlatformIO Compatible
With 17 GPIO pins available for expansion, the DSTIKE D-duino-32 II can connect to sensors, displays, modules, relays, and other peripherals. It is compatible with the Arduino and PlatformIO development ecosystems, making it accessible for makers, students, developers, and engineers.
Key Features
- DSTIKE D-duino-32 II ESP32 development board
- ESP32-WROOM-DA module with Wi-Fi, Bluetooth, and Bluetooth LE
- Dual complementary PCB antennas for improved connectivity
- Customized 16MB memory version
- Dual 128 × 64 SH1106 1.3-inch OLED displays
- Built-in DS3231 RTC chip with ±2ppm accuracy
- MicroSD card slot with FAT32 and exFAT support
- USB Type-C 5V/1A lithium battery charging
- Charge and discharge efficiency of at least 85%
- Independent power module with 5V to 12V wide voltage input
- 17 GPIO pins for sensors and custom expansion
- Compatible with Arduino and PlatformIO
- Battery charging status LEDs
- Suitable for IoT, smart home, industrial control, and data logging projects
GPIO and Hardware Information
- Displays: dual SH1106 1.3-inch OLED screens
- OLED addresses: 0x3D and 0x3C
- Display SDA: GPIO21
- Display SCL: GPIO22
- Rotary switch left: GPIO15
- Rotary switch press: GPIO13
- Rotary switch right: GPIO0
- Press button: GPIO32
- SD card CS: GPIO5
- SD card MOSI: GPIO23
- SD card MISO: GPIO19
- SD card SCLK: GPIO18
- RTC: DS3231 chip
- Power/programming switch included
- Charging LED indicators: red for charging, green for full
Ideal Applications
- IoT data logging projects
- Smart home control panels
- Portable monitoring devices
- Outdoor sensor systems
- Industrial control prototypes
- Wi-Fi projects in difficult signal environments
- Battery-powered ESP32 applications
- Arduino and PlatformIO development
Important SD Card Notice
The included SD card may contain schematic diagrams, test source code, and related development files. Please back up the SD card contents before modifying, formatting, or replacing the files.
Advanced ESP32 Board for Reliable IoT Projects
The DSTIKE D-duino-32 II combines dual displays, reliable ESP32-WROOM-DA wireless connectivity, accurate RTC timing, MicroSD storage, flexible power input, and GPIO expansion in one compact board. It is an excellent choice for developers who need a practical ESP32 platform for monitoring, logging, and connected embedded applications.
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