Esp32-Wrover Module; Esp32-Wroom-32U Module - Espressif Systems ESP32 Hardware Design Manuallines

3. HARDWARE DEVELOPMENT
and MP3 decoding. At the core of the module is the ESP32-D0WD chip. ESP32-WROOM-32U is different from
ESP32-WROOM-32D in that ESP32-WROOM-32U integrates a U.FL connector.
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.
Figure 23 shows the front and the rear side of the module.

3.5 ESP32-WROVER Module

ESP32-WROVER is another ESP32-based module. Compared to ESP32-WROOM-32(ESP-WROOM-32), ESP32-
WROVER has an additional SPI Pseudo-static RAM (PSRAM) of 32 Mbits. As such, ESP32-WROVER features
both 4 MB external SPI flash and 4 MB external PSRAM.
The ESP32-WROVER module has a PCB antenna, while the ESP32-WROVER-I uses an IPEX antenna.
Figure 24 shows the front and the rear side of the module.
For more information on the module's pin definition, physical dimensions, schematics, etc, please refer to
WROVER Datasheet.
Espressif Systems
Figure 23: ESP32-WROOM-32U Module
Figure 24: ESP32-WROVER Module
25 ESP32 Hardware Design Guidelines V2.1
ESP32-