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Welcome to Boron Developer Docs

The Boron is a cellular development board designed for building connected products that operate over LTE Cat-M1 and NB-IoT networks. With BLE 5, Feather-compatible headers, and multiple power options, it provides a flexible platform for prototyping and deploying IoT solutions.

Boron BRN404X hero

Overview​

The Boron is a Gen-3 cellular development board in the Particle family of devices. It is based on the Nordic nRF52840 SoC (Arm Cortex-M4F @ 64 MHz, 1 MB Flash, 256 KB RAM) and includes LTE Cat-M1/NB-IoT connectivity, Bluetooth Low Energy (BLE 5), and Feather-compatible pin headers. The board can be powered by USB, Li-Po battery, or an external supply.

Boron devices run Particle Device OS and connect securely to the Particle Cloud. They are commonly used as standalone cellular endpoints or gateways for other devices.

Key Features​

  • Cellular: LTE Cat-M1/NB-IoT with integrated Particle EtherSIM
  • Processor: Nordic nRF52840 (Cortex-M4F)
  • Wireless: Bluetooth Low Energy (BLE 5)
  • Form factor: Adafruit Feather compatible (22.8 × 51.8 mm)
  • I/O: 20 mixed-signal GPIO (SPI, I²C, UART, PWM, ADC, DAC)
  • Power: 5 V (USB), 3.7 V Li-Po, or external supply
  • Certifications: FCC, CE, IC, RoHS