SparkFun Digi X-ON LoRaWAN dev Kit Features STM32MP1 Gateway and RP2350A IoT Node

SparkFun has recently released the Digi X-ON LoRaWAN dev Kit, an all-in-one IoT solution designed for rapid prototyping and deployment of LoRa-based systems. It includes the Digi HX15 Gateway, the SparkFun IoT Node for LoRaWAN, and the ENS160/BME280 environmental sensor module, together they offer seamless integration with the Digi X-ON Cloud for remote management, data visualization, and OTA updates.

An STM32MP157C MPU powers the HX15 gateway, supports LoRaWAN (US915/EU868), optional LTE connectivity, and features secure communication with AES 256-bit encryption. The IoT node, based on the Raspberry Pi RP2350A MCU, integrates Digi XBee LR for long-range LoRaWAN, supports microSD storage, LiPo battery, and Arduino/MicroPython/Raspberry Pi Pico SDK for programming. The ENS160/BME280 sensor module provides air quality (AQI, CO2, TVOC), temperature, humidity, and pressure measurements via I²C. With support for Qwiic, Node-RED, Grafana, and MQTT, this kit is ideal for industrial monitoring, environmental sensing, smart agriculture, and remote data collection.

Digi HX15 gateway specifications

• Processor: STMicro STM32MP157C
  • Dual-core Cortex-A7 @ 650 MHz
  • Cortex-M4 @ 209 MHz with FPU/MPU
  • 3D GPU, secure boot, crypto engine
• Memory: 512MB RAM
• Storage: 8GB eMMC flash
• Connectivity
  • Ethernet: Gigabit Ethernet (RJ45)
    • LoRaWAN
      • US Model – US915, EU Model – EU868
      • +27 dBm max TX power, −138 dBm RX sensitivity
      • 8 RX / 1 TX channels
      • SMA antenna connector, omnidirectional, 5 Ω, max input 25W
    • Cellular (optional LTE models)
      • US Model – LTE Cat 1 (Bands B2, B4, B12), 3G (B2, B4, B5)
      • EU Model – LTE Cat 1 (Bands B1, B3, B7, B8, B20, B28A), 3G (B1, B8), 2G (B3, B8)
      • Micro SIM slot (3FF), pre-activated SIM included
      • SMA cellular antenna connectors, omnidirectional, 50 Ω
• Security: AES 256-bit encryption
• Power Supply: 5V DC via USB-C
• Dimensions: 14.61 x 14.61 x 3.17 cm
• Weight: 2.2 kg
• Operating Temperature: -25°C to 55°C (non-condensing)
• Certifications:
  • Emissions/Immunity – CE, RED, FCC Part 15 Subpart B, CAN ICES-003
  • Safety – IEC 62368-1, CB, EN 62311

Specifications of SparkFuns IoT Node for LoRaWAN

• SoC: Raspberry Pi RP2350A
  • Dual-core Cortex-M33 @ 150 MHz with Arm TrustZone
  • Dual-core 32-bit Hazard3 RISC-V @ 150 MHz
  • Up to two cores can run simultaneously
• Memory: 520KB SRAM, 8kB OTP storage
• Storage: 16MB QSPI flash, microSD card slot
• Connectivity
  • LoRaWAN: Digi XBee LR Module
    • Frequency range: 902-928 MHz (US), 868-870 MHz (EU)
    • FCC & IC certified
• USB: USB Type-C for power & programming
• Expansion
  • 15 multifunction GPIOs
  • Up to 8x 2-channel PWMs
  • Up to 2x UARTs, 2x I2C buses, 2x SPI buses
• Misc
  • Reset, Boot, and User buttons
  • PWR (red) – 3.3V power indicator
  • CHG (yellow) – battery charging indicator
• Power:
  • 2-pin JST connector for LiPo battery (not included)
  • USB-C (5V input)
  • LiPo charger (MCP73831, 500mA charge rate)
  • Fuel gauge (MAX17048)
• Dimensions: 83mm x 59mm

SparkFun ENS160/BME280 Environmental Sensor Module Specifications

• ENS160 (Air Quality Sensor):
  • Air Quality Index (AQI) – Umweltbundesamt (UBA) standard
  • eCO2 range: 400 to 65,000 ppm, resolution 1 ppm
  • TVOC range: 0 to 65,000 ppb, resolution 1 ppb
  • Humidity and ozone compensation
  • Independent sensor heater control
  • I²C Address: 0x53 (default) or 0x52
• BME280 (Temperature, Humidity, Pressure Sensor):
  • Temperature:
    • Range: -40°C to 85°C, Accuracy: ±0.5°C (0°C to 65°C), Resolution: 0.01°C
  • Humidity:
    • Range: 0% to 100% RH, Accuracy: ±3% (20% to 80% RH), Resolution: 0.008% RH
  • Pressure:
    • Range: 30,000 Pa to 110,000 Pa, Absolute accuracy: ±100 Pa, Relative accuracy: ±12 Pa, Resolution: 0.18 Pa
    • Altitude Estimation: ±1m at sea level, ±2m at 30,000ft
    • I²C Address: 0x77 (default) or 0x76
• Connectivity:
  • 2x Qwiic connectors (I²C interface)
  • 0.1-inch header pins for alternative connection
• Misc:
  • Power LED
  • I²C pull-up resistors (2.2kΩ)
  • Selectable I²C addresses via jumpers
• Power Supply:
  • Input voltage – 3.3V via Qwiic cable
  • ENS160 operating voltage – 1.71V to 1.98V
  • BME280 operating voltage – 1.71V to 3.6V
  • Onboard 1.8V AP2127K voltage regulator for ENS160
• Dimensions: 1.0 x 1.0 inches (25.4 x 25.4 mm)
• Weight: 2.50g

The SparkFunDigi X-ON LoRaWAN dev Kit supports a range of software tools for development, configuration, and remote management utilities. The company provides the Digi X-ON Cloud which is designed to secure device provisioning, real-time data visualization, and over-the-air (OTA) firmware updates, while Digi Remote Manager (DRM) offers gateway diagnostics and security policy management.

The HX15 gateway runs Digi Embedded Yocto Linux on the STM32MP157C MPU, providing a stable environment for edge computing. The SparkFun IoT Node for LoRaWAN is very user-friendly and can be programmed using the Arduino IDE, MicroPython, and the Raspberry Pi Pico SDK (C/C++), with built-in libraries for LoRaWAN communication. Digi XCTU simplifies module configuration, and developers can integrate the kit with The Things Stack (TTS) as an alternative open-source LoRaWAN network server. Additionally, sensor data can be logged and visualized using Qwiic Python libraries, Grafana, and Node-RED, while security is managed through Mbed TLS, MQTT, and HTTP APIs.

Because of regional compatibility, the development kit comes in two variants: one for North America and one for Europe. The main difference between the two is that radio frequencies are designed to comply with the regional regulations in each area. other features remain the same.

The Digi X-ON Kit (NA & EU) is available for pre-order at $395 on SparkFun. For details, check the product pages for the Digi HX15 Gateway, SparkFun IoT Node for LoRaWAN, and ENS160/BME280 sensor.

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