OBJEX Link S3LW IoT development board Includes Wi-Fi, Bluetooth, and LoRa Connectivity

The OBJEX Link S3LW is an IoT development board built for battery-powered operations. The board features a custom S3LW system-on-module (SoM) built around the ESP32-S3 MCU. The board supports Wi-Fi, Bluetooth 5, LoRa, and LoRaWAN communication protocols and features 33 GPIOs, I2C, I2S, SPI, UART, and USB interfaces, along with a STEMMA connector for easy integration.

There is a dedicated linear regulator for the LoRa radio, allowing for granular power control and optimization in different operating modes. The board can be powered via USB-C PD or a screw terminal block and supports various programming environments like ESP-IDF, Arduino IDE, PlatformIO, MicroPython, and Rus

Previously we have written about various development boards with ESP32-S3 MCU including LILYGO’s T3-S3 ESP32-S3 board, the LILYGO T3S3 E-Paper, the LILYGO T-Energy-S3 ESP32-S3 and much more, feel free to check those out if you are interested in various ESP32-S3 boards.

OBJEX Link S3LW IoT Development Board Specifications

• Interface:
  • PCI Express x1, up to 5.0/2.5GT/s
  • M.2 2230 (A+E key) form factor
• Ethernet:
  • Single port, RJ45 connector
  • 10/100/1000/2500Mbps auto-negotiation
  • IEEE 802.3x and IEEE 802.3z flow control
  • Wake-on-LAN support
  • Isolated LAN port
• Controller: Intel I226-IT
• Power Consumption: [email protected]
• Additional Features:
  • MECFIX versatile mounting system
  • Time Sensitive Networking (TSN) capabilities
• Environmental:
  • Operating Temperature: -40℃ to +85℃
  • Storage Temperature: -40℃ to +125℃
  • Humidity: 5% to 95% (non-condensing)
• Compliance:
  • CE, FCC, UKCA
  • EN 55032, EN61000-3-2, EN61000-3-3, FCC Part 15 Subpart B, Class B
  • EN 55035, IEC 61000-4-2 to 4-11
• Dimensions:
  • Main Board: 22.00 x 30.00 mm
• Warranty: 3 years
• MTBF: >20,161,919 hours

To save power, the module has a separate power control for the LoRa radio and a latch that can turn off the rest of the hardware when not needed. This works together with the ESP32’s sleep modes to use less energy.

The board and module can be used with different programming tools like Espressif ESP-IDF, Arduino IDE, PlatformIO, MicroPython, and Rust.

OBJEX will release open-source design files for the development board and modules in the future. For more information, visit the OBJEX Link S3LW product page to sign up for updates and view preliminary datasheets.

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