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This tiny ESP32-S3 packs an impressive amount of hardware into 24mm. The M5Stack ATOMS3R is a tiny IoT controller built around a dual-core ESP32-S3 running at up to 240MHz, with 8MB Flash and 8MB PSRAM. It also has a 128×128 color display, BMI270 6-axis IMU, BMM150 magnetometer, programmable button... and IR transmitter, plus USB-C and expansion GPIO. At just 24 × 24 × 12.9mm and 6.8g, this is small enough to disappear inside the project you are building. You can program it with Arduino, ESP-IDF, PlatformIO or UiFlow2, so it is a pretty capable little platform for embedded and IoT experiments. At $17.50, it is the kind of board you can throw into a project just to see what you can build. Tiny board. Full ESP32-S3. Lots of possibilities.show more

Praveen Kumar Verma

9,904 subscribers

30,315 views • 2 months ago •via X (Twitter)

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9 Comments

Future Displays2 months ago

It’s impressive how much functionality fits into just 24 mm. The tiny 128×128 color display makes the data clear and interactive without taking up valuable space—a great example of compact IoT design.

Praveen Kumar Verma2 months ago

100%. Small devices have so much power now.

jdenken2 months ago

It’s is amazing, where we can found more about this project ? Thanks!

jdenken2 months ago

Thanks brother.

dmsimon2 months ago

@yacineMTB

Leo Lin2 months ago

With an IMU, magnetometer and radio packed this tightly, I'd check magnetic bias under different loads and timestamp drift during Wi-Fi bursts. Small boards make integration easier; clean, time-aligned sensor data still takes deliberate engineering.

Praveen Kumar Verma2 months ago

Completely agree with you on this.

icebear2 months ago

I like it says 'HIT ME'

Praveen Kumar Verma2 months ago

😄

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• nanou •

33,459 views • 2 months ago

An ESP32-S3 with a 3.97-inch e-paper display. What would you build? This Waveshare board combines an ESP32-S3 with a 800 × 480 e-paper screen, making it useful for low-power projects that need to display information without constantly refreshing a backlit display. Think desk dashboards, e-book readers, weather stations, or smart labels that update over Wi-Fi. The e-paper display keeps the image visible even when power is removed, making it a great fit for mostly static information.

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Turning complicated hardware into simple, fun lessons | ESP32 edition Just like my Arduino app, this one shows you what the ESP32 can do, one circuit at a time. Made with Opus 5.5

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Hi 👋 I am Summer and I am building my dream companion robot. ☺️ In day 7 update, I combined ESP32 and ESP32 cam board with a single ESP32-S3 cam board and also implemented Xiaozhi library which works as MCP. Enjoy and let me know what you think :) #esp32 #robotics #engineering

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