In 2014, Espressif Entered The DIY Microcontroller Market With The ESP8266. In 2016, Dual-Core ESP32 Were Added. Today, It's A Powerful Processor Family

When the Chinese company Espressif in 2014 released its ESP8266 microcontroller, it became an instant success and started be a serious competition for the ATMega-based Arduino microcontroller breakout boards.

Since then, Expressif has expanded its microcontroller family with many new models. These models can be divided into two sub-families:

  • ESP8266: A cheap and reliable workhorse for DIY projects with WiFi built-in. Released 2014.
  • ESP32: A powerful one- and two-core family of microcontrollers with WiFi, Bluetooth, WiFi6, Zigbee, and Threads support (depending on ESP32 model). Initially released 2016, with new models in 2020 and 2021, and ever since.

The Expressif ESP32 microcontrollers are in fact so powerful and popular that Arduino is using this processor now as well, and released its first ESP32 board in 2023: the Nano ESP32.

from left to right ordered by size: ESP32 C3 from Seeed, ESP8266 D1 Mini clone, ESP32 WROOM 32D dev board.


Please do leave comments below. I am using utteran.ce, an open-source and ad-free light-weight commenting system.

Here is how your comments are stored

Whenever you leave a comment, a new github issue is created on your behalf.

  • All comments become trackable issues in the Github Issues section, and I (and you) can follow up on them.

  • There is no third-party provider, no disrupting ads, and everything remains transparent inside github.

Github Users Yes, Spammers No

To keep spammers out and comments attributable, all you do is log in using your (free) github account and grant the permission to submit issues on your behalf.

If you don’t have a github account yet, go get yourself one - it’s free and simple.

If for any reason you do not feel comfortable with letting the commenting system submit issues for you, then visit Github Issues directly, i.e. by clicking the red button Submit Issue at the bottom of each page, and submit your issue manually. You control everything.


For chit-chat and quick questions, feel free to visit and participate in Discussions. They work much like classic forums or bulletin boards. Just keep in mind: your valued input isn’t equally well trackable there.

  Show on Github    Submit Issue

(content created Mar 23, 2024)