The ESP32-WROVER-B is a powerful, a low-power, System-on-Chip (SoC) Wireless Module from Espressif. It integrates a dual-core processor and Wi-Fi, giving it the ability to host applications and deliver Wi-Fi functionality. The ESP32-WROVER-B contains the ESP32-WROVER-B1 MCU (M213DH6464PC3Q0) with 4MB embedded SPI Flash, 8MB PSRAM, Bluetooth/BLE, and Wi-Fi/802.11b/g/n connectivity. It also features an integrated peripheral control, an analog-to-digital (ADC), an I/O expansion interface, a UART, two 12-bit SAR analog-to-digital converter (ADC), two comparators, two 8-bit PWMs, and two UARTs. It can be operated from -10? to +125?. The ESP32-WROVER-B is an ideal module for secure and reliable IoT applications.