M5Stack StampS3A ESP32-S3 SoC Module Launches with Improved Antenna, Lower Power, and Dual-Core MCU for $7.50

M5Stack StampS3A is a Wi-Fi and BLE IoT based integrated embedded module powered by the Espressif ESP32-S3FN8 SoC featuring 240 MHz Xtensa 32-bit LX7 dual-core processor, is an update to the M5Stamp S3 ESP32-S3 module introduced in 2023 with an optimized 2.4GHz 3D antenna design with better signal reception, lower power consumption, a larger user button, and a different logic for the programmable RGB LED control.

M5Stack Stamp-S3A, also known as the M5StampS3A, are available in two versions: The StampS3A without pre-soldered headers and the Stamp-S3A PIN1.27 with headers soldered on the board and an orange heat-resistant cover. Applications include Intelligent IoT devices, Industrial control terminals, and Smart Wearable devices.

We’ve previously covered several ESP32-S3-based modules, including the OMGS3, Walter module, LILYGO T-ETH-Elite, and more. If you’re interested in these products, feel free to check them out.

M5Stack StampS3A Specifications:

• SoC: Espressif Systems ESP32-S3FN8
  • CPU:
    • Dual-core 32-bit Xtensa LX7 @ up to 240MHz with AI vector instructions
    • RISC-V ULP co-processor
  • Memory: 512KB SRAM
  • Storage: 8MB Flash
  • Wireless connectivity:
    • 2.4GHz Wi-Fi 4 (802.11b/g/n), 20/40MHz bandwidth, up to 150Mbps
    • Bluetooth 5.0 LE with Mesh support, long-range (125Kbps to 2Mbps bitrates)
    • Integrated 2.4GHz 3D antenna
• USB: 1x USB Type-C port (power + programming)
• Expansion:
  • 2.54mm and 1.27mm I/O headers, castellated holes
  • Up to 23x GPIOs
  • SD/SDIO/MMC, SPI master/slave, UART, I2C, I2S
  • Touch sensors, EMAC, Motor PWM, LED PWM, pulse counter
  • Optional 8-pin/12-pin FPC connector for LCD/GPIO
• Misc:
  • 1x programmable/user button
  • 1x user-programmable RGB LED (WS2812B-2020)
• Power:
  • 5V/500mA input via USB Type-C
  • MUN3CAD01-SC 5V to 3.3V DC/DC converter
• Operating temperature: 0°C to 40°C
• Dimensions: 26 x 18 x 4.7 mm
• Weight: 2.9 grams

Regarding the software, M5Stack Stamp-S3A supports the ESP-IDF framework, PlatformIO, the Arduino IDE, and the web-based UIFlow visual programming platform. User will find the full technical details, including the schematics and instructions to get started with the Arduino IDE or UIFlow2, on the documentation website.

M5Stack sells the new Stamp-S3A ESP32S3 modules on its online store for $7.50.