The M5StampS3A PIN2.54 is a highly integrated embedded module built around the Espressif ESP32‑S3FN8 SoC. Featuring a 240 MHz Xtensa® 32‑bit LX7 dual‑core processor, 8 MB Flash, and an optimised 3D antenna, it delivers reliable 2.4 GHz Wi‑Fi connectivity in a compact form factor. With 23 multifunction GPIOs and a 2.54 mm pitch SMT header, it’s ideal for high‑density PCB integration and rapid IoT prototyping.
Key Features
-
ESP32‑S3FN8 dual‑core MCU @ 240 MHz
-
8 MB Flash for versatile application storage
-
2.4 GHz Wi‑Fi with optimised 3D antenna for stronger signal reception
-
23 GPIOs supporting SPI, I2C, UART, PWM, I2S, touch sensing, and more
-
2.54 mm pitch SMT interface for easy integration
-
Programmable RGB LED (WS2812B‑2020) and physical button for user interaction
-
Supports Arduino IDE, ESP‑IDF, PlatformIO, and UiFlow2
Applications
-
Smart Home automation controllers
-
Wearable Devices and Health Monitoring Systems
-
Industrial Control Terminals
-
Smart IoT Devices for edge computing
Technical Specifications
| Parameter | Value |
|---|---|
| SoC | ESP32‑S3FN8 |
| Flash | 8 MB |
| Wireless | 2.4 GHz Wi‑Fi |
| GPIO | 23 multifunction pins |
| Input Voltage | DC 5 V |
| Dimensions | 26.0 × 18.0 × 4.7 mm |
| Weight | 3.1 g |
| Operating Temp | 0 ~ 40 °C |
Product Comparison
| Feature | Stamp‑S3A PIN2.54 | Stamp‑S3 PIN2.54 |
|---|---|---|
| RGB LED Control Logic | RGB LED power is shared with reserved screen FPC cable backlight | Powered on immediately when powered |
| Antenna Design | Optimized antenna design for better signal reception | Standard antenna design |
| Module Boot Button | Improved button feel, spec 4.0 × 3.0 × 2.0 mm | Spec 2.6 × 1.6 × 0.55 mm |
| Power Consumption | Optimized for lower power consumption | Standard design |