M5StampS3A Module with 2.54 Header Pin

The M5StampS3A module with 2.54 mm header pin is a highly integrated embedded module based on the Espressif ESP32-S3FN8 processor. This 32-bit Xtensa LX7 dual-core processor runs up to 240 MHz and features 8 MB of flash memory for demanding IoT applications. The integrated 3D antenna ensures a stable 2.4 GHz Wi-Fi connection and improves signal quality. The 23 multifunctional GPIO pins are brought out as 2.54 mm SMT headers, allowing the connection of various sensors and actuators. For user interaction, a programmable RGB LED and a physical button are integrated, which can be freely assigned depending on the application. Thanks to the optimized design, power consumption is reduced compared to previous modules, and the new boot button is significantly more robust. Additionally, several I/O breakout options such as SMT solder pads, DIP pins, and "flying wires" are available, facilitating integration into diverse projects. The 5V DC input powers the module reliably via an integrated MUN3CAD01-SC type DC-DC converter. With dimensions of only 26 × 18 × 4.7 mm and a weight of 3.1 g, the board also fits into compact cases. Developers can use UIFlow2, the Arduino IDE, ESP-IDF, or PlatformIO for programming, ensuring flexible software support. For connecting a display, a reserved SPI display port (0.5 mm-FPC, 8 or 12 pins) is available, and the boot pins G0 and G46 must be correctly configured on startup to ensure a successful boot process. Overall, the M5StampS3A module offers a powerful yet space-saving solution for wireless control and IoT projects.

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Features:

Processor: An Espressif ESP32-S3FN8 dual-core chip (Xtensa LX7) operates up to 240 MHz and provides high computing power
Wi-Fi Antenna: The integrated 2.4 GHz 3D antenna offers improved wireless range and stable signal quality, ideal for wireless IoT applications
GPIOs: 23 multifunctional GPIO pins are led out via 2.54 mm SMT headers, allowing diverse peripheral connections
Flash Memory: The module features 8 MB SPI flash to store extensive programs and data
I/O Breakout: Multiple soldering and plugging options (SMT, DIP, flying wires) facilitate prototyping and integration into custom PCBs
RGB LED and Button: A programmable RGB LED (WS2812B-2020) and a user-definable button enable status displays and user inputs
Power Supply: The board is powered by 5V DC and integrates a MUN3CAD01-SC converter for stable supply
Interfaces: Besides GPIOs, touch sensor, SDIO/MMC host controller, SPI/SDIO/SPI-slave, EMAC, motor PWM, LED PWM, UART, I2C, I2S, and pulse counter are available
Form Factor: With a size of 26.0 × 18.0 × 4.7 mm and a weight of 3.1 g, the module is suitable for dense circuit board layouts
Development Environment: Supports UIFlow2 (graphical programming), Arduino IDE, ESP-IDF, and PlatformIO for flexible software development
Optimized Antenna: Compared to previous models, the antenna design is optimized for better signal reception
Performance Optimization: Improved boot button and reduced power consumption enhance reliability and efficiency
Display Connection: A reserved 0.5 mm FPC connector (8 or 12 pins) enables the connection of a TFT display
Boot Pins: The pins G0 and G46 control the boot mode; G0 has a pull-up resistor, G46 a pull-down – G46 should only be pulled high after startup

Documentation:

Technical Details:

Manufacturer: M5Stack
Manufacturer SKU: S007-PIN254-V033
SoC: ESP32-S3FN8 Xtensa LX7 Dual-Core (up to 240 MHz)
DC-DC Converter: MUN3CAD01-SC
Flash Memory: 8 MB
Input Voltage: 5V DC
Controls: 1 programmable button, 1 programmable RGB LED
Antenna: 2.4 GHz 3D antenna
Connectors: Touch sensor, SD/SDIO/MMC host controller, SPI/SDIO/SPI-slave, EMAC, PWM (motor/LED), UART, I2C, I2S, GPIO, pulse counter
IO Ports: 23 pins, including G0–G15 and G39–G46, pitch 2.54 mm
FPC Interface: 0.5 mm pitch with 12-pin or 8-pin connection
Operating Temperature: 0°C to 40°C
Dimension: 26 × 18 × 4.7mm
Weight: 8g