What is ESP32? Features of ESP32, How to choose the right ESP32 board Why choose this board for IoT applications you should have heard enough about the ESP32 chip and from its specification it looks like a chip of the future which will help you build anything. Espressif has always been at the peak of the IoT market after releasing its game changing chip, the ESP8266. The ESP32 is probably the first and maybe the only microcontroller that was launched with support for Arduino. The wireless capabilities of the ESP32 are what its users will mention first, but it has much more than that.