M5StampS3A with 1.27mm Header Pins

The M5StampS3A with 1.27mm Header Pins is an ESP32-S3FN8 module with a dual-core 240MHz processor, 8MB Flash, integrated RGB LED, user button, and optimised 3D antenna. It provides 23 GPIOs via a pre-soldered 1.27mm SMT header for compact PCB integration.

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M5Stack M5StampS3A with 1.27mm Header Pins is a highly integrated embedded module based on the Espressif ESP32-S3FN8. It features a 240 MHz Xtensa® 32-bit LX7 dual-core processor, integrates 8 MB Flash, a programmable RGB LED, and a user button.

The deeply optimized 3D antenna design delivers stronger wireless performance. Twenty-three GPIOs are broken out and a 1.27 mm-pitch SMT pin header is pre-soldered, providing an even smaller footprint for high-density PCB integration and enabling developers to build compact applications quickly.

Features

• ESP32-S3FN8 (2.4 GHz Wi-Fi)
• 1.27 mm-pitch SMT interface
• 23 multifunctional GPIOs
• 8 MB Flash
• Rich I/O breakout supporting multiple application forms (SMT, DIP, fly-wire)
• Integrated programmable RGB LED and button
• Development Platform
  • UiFlow2
  • Arduino IDE
  • ESP-IDF
  • PlatformIO

Specifications

Specification	Parameter
SoC	ESP32-S3FN8
DC-DC	MUN3CAD01-SC
Flash	8 MB
Input Voltage	DC 5 V
HMI	Programmable physical button × 1, programmable RGB LED (WS2812B-2020) × 1
Antenna Type	2.4 GHz 3D antenna
Module Resource I/F	Touch Sensor, SD/SDIO/MMC Host Ctrl, SPI, SDIO/SPI Slave Ctrl, EMAC, Motor PWM, LED PWM, UART, I²C, I²S, GPIO, Pulse Counter
IO Interfaces × 23	G0/G1/G2/G3/G4/G5/G6/G7/G8/G9/G10/G11/G12/G13/ G14/G15/G39/G40/G41/G42/G43/G44/G46
IO Pitch	1.27 mm
LCD FPC Pitch	0.5 mm @ 12 P or 8 P
Operating Temp.	0 ~ 40 °C
Product Size	26.0 × 18.0 × 4.7 mm
Product Weight	3.1 g

Resources

• Product documentation

Package Contents

• 1 x M5StampS3A with 1.27mm Header Pins
• 1 x Pin Sticker