SKU: IOWC-0997
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M5Stack M5StampS3A ESP32-S3 Wi-Fi IoT Module

₹1,189.00 (Inclusive of all taxes)
Out of Stock

The M5Stack M5StampS3A is a compact embedded Wi-Fi module based on the ESP32-S3FN8 SoC, featuring a dual-core 240 MHz processor, 8 MB flash, and a 3D antenna for robust IoT connectivity. It is compatible with Arduino IDE, ESP-IDF, and PlatformIO for rapid development.

Features

  • Powered by the ESP32-S3FN8 SoC with dual-core 240 MHz Xtensa LX7 CPU for high-performance IoT processing.
  • Integrated 8 MB SPI flash memory for ample program and data storage in embedded applications.
  • Features a highly-optimized onboard 3D antenna for strong and stable 2.4 GHz Wi-Fi signal reception and transmission.
  • Breaks out 23 versatile GPIO pins with both 1.27 mm and 2.54 mm pitch options for flexible DIP, SMT, or jumper wire interfacing.
  • Includes a programmable RGB LED and user button for immediate human-machine interface (HMI) prototyping and interaction.

Out of stock

Description

The M5Stack M5StampS3A is a highly integrated Wi-Fi module designed for space-constrained yet performance-demanding IoT applications. Built around the Espressif ESP32-S3FN8 chip, it combines a powerful dual-core 240 MHz processor with robust 2.4 GHz Wi-Fi connectivity, managed by an efficient onboard 3D antenna. This architecture ensures reliable wireless communication for data telemetry, remote control, and cloud connectivity in dynamic environments.

Power management is streamlined for embedded use, operating from a standard 5V DC input. The module provides 23 multi-function GPIOs, accessible via two pitch options, enabling direct connection to sensors, actuators, and displays without additional level-shifting. The inclusion of a programmable RGB LED and tactile button accelerates prototyping by offering immediate visual feedback and user input capabilities, eliminating the need for external components during initial development phases.

Key Features

  • Core system based on the ESP32-S3FN8, a feature-rich SoC with 2.4 GHz Wi-Fi.
  • Dual-core 240 MHz Xtensa LX7 CPU delivers high computational throughput for complex IoT logic.
  • Onboard 8 MB SPI flash provides sufficient space for application code, file systems, and OTA updates.
  • Integrated 3D antenna design optimizes Wi-Fi range and reliability without external antenna components.
  • Flexible pinout with 23 GPIOs available in both 1.27mm (fine-pitch) and 2.54mm (standard) spacing for various assembly methods.
  • Built-in programmable RGB LED and user button facilitate quick HMI development and device status indication.
  • Broad development ecosystem support including Arduino IDE, ESP-IDF, PlatformIO, and M5Stack's UiFlow2 for block-based coding.
  • Compact form factor (26 x 18 mm) ideal for embedding into final products, wearables, or dense prototype boards.

Applications

  • Smart home automation nodes for sensor aggregation and wireless control.
  • Intelligent IoT devices for data logging, environmental monitoring, and telemetry.
  • Industrial control terminals and HMI interfaces for machinery and process monitoring.
  • Wearable electronic devices requiring compact size and wireless connectivity.
  • Prototyping platform for educational purposes and rapid product development.

Technical Specifications

Microcontroller/SoCESP32-S3FN8
Wireless Protocols2.4 GHz Wi-Fi (802.11 b/g/n)
CPUDual-core Xtensa LX7 @ 240 MHz
Flash Memory8 MB
Supply Voltage5V DC
GPIO Pins23 multi-purpose
AntennaIntegrated 3D antenna
Pitch Options1.27 mm and 2.54 mm
Onboard PeripheralsProgrammable RGB LED, User Button
Operating Temperature0°C to 40°C
Dimensions (L x W)26 mm x 18 mm
Weight2.9 g

Frequently Asked Questions

How do I power the M5StampS3A module and what is the operating voltage?

The module requires a 5V DC power supply, which can be provided via the dedicated power pins or the HY2.0 connector. Ensure your power source can deliver stable 5V, as the onboard voltage regulator steps this down for the core ESP32-S3 logic. Avoid using voltages higher than 5V to prevent damage to the sensitive components on the board.

What development environments are supported for programming this module?

The M5StampS3A is supported by multiple development frameworks. You can use the Arduino IDE with the ESP32 board package, Espressif's official ESP-IDF for full low-level control, or PlatformIO within VS Code. Additionally, M5Stack's block-based UiFlow2 platform offers a simpler graphical programming interface, making it accessible for beginners and rapid prototyping scenarios.

Can I use an external antenna with the M5StampS3A, and how do the GPIO pins work?

No, the module features a permanently integrated 3D antenna and does not have an external antenna connector. The 23 GPIO pins are multifunctional, supporting digital I/O, ADC, DAC, UART, I2C, SPI, and PWM. They are broken out with dual 1.27mm and 2.54mm pitch footprints, allowing you to solder headers for breadboarding or use the fine-pitch pads for direct surface-mount assembly into your final product design.

Package Includes

  • 1 x M5Stack M5StampS3A ESP32-S3 Module
  • 1 x HY2.0-4P terminal connector
  • 1 x 2.54-9P header pin strip
  • 1 x 2.54-6P header pin strip
  • 1 x Hex Key

Additional Information

Weight 0.0029 kg
Dimensions 2.6 × 1.8 cm