Arduino Cloud Adds Support for ESP32-S2, -S3, and -C3-Based Boards

Develop for these popular ESP32 variants in the cloud.

Arduino offers users two use models for programming microcontroller boards: an IDE that runs on a PC or a cloud-based development platform. The downloadable IDE is well-known in the hobby and professional worlds for supporting a large variety of boards. On the other hand, Arduino Cloud's web editor and IoT hub support a much smaller set. For example, this platform already supported the Arduino-developed boards, ESP8266 boards, and ESP32 modules. Just the other day, Arduino announced added support for three ESP32 variations: the ESP32-S2, S3, and C3!

These variations of the ESP32 system-on-a-module (SOM) have hardware differences that make them unique. For example, the ESP32-S2 only has a single 32-bit Xtensa core, reduced RAM and ROM, and Wi-Fi only (no Bluetooth) — compared to the traditional ESP32. These tradeoffs mean the S2 draws significantly less power consumption, especially while active.

The dual-core ESP32-S3 is similar to the original and, unlike the S2, has Bluetooth 5 (LE) support. In addition, it has instructions specific to neural networks and signal processing which is helpful in edge machine learning applications.

When Esspresif introduced the ESP32-C3, it was their first SOM based entirely on the RISC-V architecture. It is a low-cost, single-core SOM with Wi-Fi and Bluetooth support.

Support for ESP32-S2, S3, and C3 modules is now available. The easiest way to configure an Arduino Web Editor project for the ESP32- variants is to filter on "ESP32-S" or "ESP32-C." There is also an updated tutorial page on connecting either ESP32 or ESP8266 boards available as well. For additional information, check out this Arduino blog post.

James Lewis
Fan of making things that blink, fly, or beep. Host on element14 Presents,, AddOhms, and KN6FGY.
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