Esp32-Wroom-32D(Esp-Wroom-32D) Module; Esp32-Wroom-32U Module; Esp32-Wroom-32(Esp-Wroom-32) Module - Espressif Systems ESP32 Hardware Design Manuallines

3. HARDWARE DEVELOPMENT
Figure 21: ESP32-WROOM-32(ESP-WROOM-32) Module

3.3 ESP32-WROOM-32D(ESP-WROOM-32D) Module

ESP32-WROOM-32D(ESP-WROOM-32D) is a powerful, generic Wi-Fi+BT+BLE MCU module that targets a wide
variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice
encoding, music streaming and MP3 decoding. At the core of the module is the ESP32-D0WD chip.
The size of the module is 18±0.2 mm x 25.5±0.2 mm x 3.1±0.15 mm. The flash used is in an SOP8-208 mil
package. The on-board PCB antenna has a gain of 3.7 dBi.
Figure 22 shows the front and the rear side of the module.
Figure 22: ESP32-WROOM-32D(ESP-WROOM-32D) Module

3.4 ESP32-WROOM-32U Module

ESP32-WROOM-32U is a powerful, generic Wi-Fi+BT+BLE MCU module that target a wide variety of applications,
ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming
Espressif Systems 24 ESP32 Hardware Design Guidelines V2.1