What is it?

ESP32-WROOM-DA is a powerful Wi-Fi + Bluetooth + Bluetooth LE MCU module, with two complementary PCB antennas in different directions. I customized the 16MB memory version and designed this development board around it.With two unique antennas design on one single module, ESP32-WROOM-DA can be used to develop IoT applications that need stable connectivity over a broad spectrum, or to deploy Wi-Fi in challenging and hazardous environments, or to overcome communication problems in Wi-Fi-dead spots. This module is an ideal choice for indoor and outdoor devices for smart home, industrial control, consumer electronics, etc.

What makes it special?

• Equipped with a 128x64 dual OLED screen, data monitoring and interactive interface are displayed simultaneously.
• Equipped with a built-in DS3231 chip (with ±2ppm accuracy) and a MicroSD card slot, it ensures precise data recording and massive storage (supporting FAT32/exFAT formats).
• Integrated 5V/1A Type-C fast charging and lithium battery management (charge and discharge efficiency ≥ 85%), independent power module supports 5-12V wide voltage input, ensuring no power interruption for outdoor projects.
• The 17 GPIO pins can be connected to various sensors, and it is compatible with the Arduino/PlatformIO ecosystem.
• There are schematic diagrams, test source codes, etc. in the SD card. Please back up the contents of the SD card in advance.

GPIOs and hardware info

• Diplay: SH1106 1.3 OLED (0x3D,0x3C)
• Display SDA: GPIO21
• Display SCL: GPIO22
• Rotary switch LEFT: GPIO 15
• Rotary switch PRESS: GPIO 13
• Rotary switch RIGHT: GPIO 0
• Press button :GPIO 32
• SD CS:GPIO5
• SD MOSI:GPIO23
• SD MISO:GPIO19
• SD SCLK:GPIO18
• DS3231 RTC chip
• Power/Programming Switch
• 2 LEDs to indicate battery charging status (Red:Charging,Green:Full)