ESP32-WROOM-32D WiFi-BT Module 4MB Flash (XXSR69)

• Chip: ESP32-D0WD-V3
• Flash Memory: 4MB SPI Flash
• Wireless Connectivity: Wi-Fi (802.11b/g/n) & Bluetooth (v4.2 BR/EDR and BLE)
• Antenna: Onboard PCB antenna
• Peripherals: UART, SPI, I2C, I2S, PWM, ADC, DAC, SD/MMC host controller, GPIO, Capacitive Touch Sensor, Hall Sensor
• Operating Voltage: 2.7V - 3.6V
• Operating Temperature: -40°C to +85°C
• Package: SMD, castellated module for easy soldering

Ideal for various IoT applications including smart home devices, industrial automation, wireless communication, wearable electronics, robotics, and smart lighting solutions. Its powerful processor and rich set of peripherals make it suitable for projects requiring both connectivity and processing power.

The ESP32-WROOM-32D module requires an external 3.3V power supply. Care should be taken during soldering due to its castellated edges. Ensure proper voltage levels for I/O pins, as they operate at 3.3V. It is recommended to use with a development board for easier prototyping and access to all pins. Drivers for the USB-to-serial chip on development boards (if used) may be required.

For comprehensive technical details, pinout information, and electrical characteristics, please refer to the official Espressif documentation: ESP32-WROOM-32D & ESP32-WROOM-32U Datasheet