ESP32-WROOM-32 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 this module is the ESP32-D0WDQ6 chip. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the CPU clock frequency is adjustable from 80 MHz to 240 MHz. The user may also power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals for changes or crossing of thresholds. ESP32 integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I²S and I²C.

Manufacturer(s) Espressive
Used chip ESP32-D0WDQ6
Flash 4 (MB)
Antenna PCB Antenna
Total nr of pins 38
Programmable pins 33

Used chip


ESP32 is a single 2.4 GHz Wi-Fi-and-Bluetooth combo chip designed with the TSMC ultra-low-power 40 nm technology. It is designed to achieve the best power and RF performance, show...

Arduino board settings

Board name:
ESP32 Dev Module

Flash size:
  • 4MB (32Mb)
  • 8MB (64Mb)
  • 2MB (16Mb)
  • 16MB (128Mb)

Partition scheme:
  • Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS)
  • Minimal (1.3MB APP/700KB SPIFFS)
  • Minimal SPIFFS (1.9MB APP with OTA/190KB SPIFFS)