Sun Sep 15 10:05:44 UTC 2024: ## Unexpected Maker Unveils World’s Smallest ESP32-S3 Module: OMGS3
**Shenzhen, China** – Unexpected Maker has released the OMGS3, a compact ESP32-S3 module boasting the title of the world’s smallest in its category, measuring just 25x10mm. This new board replaces the previous NanoS3, based on the ESP32-S3FN8 SoC, and comes equipped with a dual-core ESP32-S3 WiFi and BLE wireless SoC, 8MB QSPI flash, and 2MB QSPI PSRAM.
Despite its minuscule size, the OMGS3 packs a punch with features like a 3D antenna, an RGB LED, two LEDs for power and charging, and I/Os exposed through 26 solder pads. The board also boasts VBUS and VBAT sensing, offering enhanced functionality.
The OMGS3 retains software compatibility with prior ESP32-S3 boards, supporting Espressif IDF framework, Arduino, CircuitPython, and MicroPython. Developers can leverage the extensive documentation available online, including support for the nanoFramework, a .NET-based framework for microcontroller development.
Although smaller than its predecessor, the OMGS3 features less PSRAM (2MB vs 8MB) and fewer GPIOs due to the adoption of the ESP32-PICO-S3 SiP. While castellated holes were used for I/Os on previous boards, the OMGS3 relies on solder pads, potentially making assembly more challenging.
The OMGS3 is priced at $17 and comes with preinstalled CircuitPython.
However, the OMGS3’s claim to the “world’s smallest” title has been challenged by the M5Stamp ESP32S3 Module, which measures 26×18mm and is priced at less than half the cost of the OMGS3.
Despite the competition, the OMGS3 offers a compelling alternative for developers seeking a compact and feature-rich ESP32-S3 module for various embedded systems and IoT applications.
First Piper 