ESP32-WROOM-32 is a powerful, generic WiFi + Bluetooth + Bluetooth Low Energy 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 this ESP32-WROOM-32 module is the ESP32-D0WDQ6 chip. This chip also as compared the ESP32-D0WD contains the 2 CPU cores, and operates on same adjustable frequency of 80 Mhz to 240 Mhz. Out of this 2 cores, the main processor can be turned off and co-processor can be used for monitoring of peripheral changes, and threshold levels. The actual difference between ESP32-D0WDQ6 and ESP32-D0WD is only that ESP32-D0WD is a smaller package. The ESP32-D0WDQ6 has peripherals like capactive touch sensors, Hall sensors, SD Card Interface, Ethernet, high speed SPI, UART, I2C and I2S.