ESP32 Boards

The ESP32 is one of the most powerful and complete microcontrollers commonly used in DIY projects by makers.

It has everything that a classic microcontroller has: GPIO, PWM, Timer, ADC, DAC, I2C, SPI, PWM, SD with in addition WiFi and Bluetooth and a low power consumption mode. It is therefore much more judicious to buy a single ESP32 board which contains all these functionalities instead of buying an Arduino board then a Bluetooth module and a Wifi module.

Here are the uPesy boards based on an ESP32:

uPesy Boards

uPesy ESP32 Wroom DevKit

uPesy ESP32 Wrover DevKit


Available on Amazon FR

Available on Amazon FR DE ES IT NL

Comparison of the different ESP32 DevKit boards

uPesy ESP32 Wroom DevKit

uPesy ESP32 Wrover Devkit

Common ESP32 Devkit

ESP32 Module

ESP32-WROOM-32 (made in 2020)


ESP32-WROOM-32 (old revision)

Internal RAM

520 KB (327 KB usable)

520 KB (327 KB usable)

520 KB (327 KB usable)

External RAM


4 MB


Wifi antenna

Optimized position

Optimized position

On the PCB

BreadBoard compatible




Pins number



30 or 36


On most ESP32 boards (with 36 pins), 6 to 8 pins cannot be used like conventional GPIOs.