ESP32-WROOM-32D

ESP32-WROOM-32D is a cost-effective Wi-Fi + Bluetooth + Bluetooth LE module based on the ESP32-D0WD chip, designed for mass-market IoT applications.

• 2.4 GHz Wi-Fi and Bluetooth Classic/LE
• Multiple flash and PSRAM options
• Operating temperature: -40°C ~ 85°C
• Size: 18 x 25.5 x 3.1 mm
• Integrated PCB antenna
• Popular for smart home and consumer devices

The ESP32-WROOM-32D is Espressif’s flagship module for cost-sensitive applications that still need robust Wi-Fi and Bluetooth capabilities. It’s built around the ESP32-D0WD chip, which provides dual-core processing power, low power consumption, and a rich set of peripherals-all in a compact, easy-to-integrate package. If you’re building a smart home device, consumer electronics, or any IoT product that needs reliable wireless connectivity without breaking the bank, this is your go-to choice.

Compared to the more advanced WROVER series, the WROOM-32D is designed for mass-market applications where cost and size are critical, but you still want the full ESP32 feature set. It’s perfect for projects that require basic audio processing, sensor data transmission, or simple control tasks-all while keeping your BOM low.

The module comes in several variants to suit different needs:

• ESP32-WROOM-32D-N4: The basic variant with 4MB of flash, ideal for most IoT applications.
• ESP32-WROOM-32D-N8: An enhanced version with 8MB of flash, providing more storage for larger applications.
• ESP32-WROOM-32D-N16: The top-tier variant with 16MB of flash, perfect for applications that require extensive firmware or data storage.
• ESP32-WROOM-32D-H4: A high-temperature variant with 4MB of flash, designed for industrial applications where reliability in extreme heat is essential.

In summary, the ESP32-WROOM-32D is your best bet for cost-effective, reliable wireless connectivity in a wide range of IoT applications. Whether you’re building a smart thermostat, a wearable device, or a simple sensor network, this module delivers the performance you need without overspending.