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Microcontroller · Development Board
Particle Boron
Particle's cellular IoT development board combines nRF52840 application logic with LTE connectivity and Particle Device OS.
Processor
Nordic nRF52840 + cellular modem
Logic
3.3 V GPIO
Power
USB, Li-Po connector, VIN
Format
Particle Feather-like module
Check before wiring
- Cellular current bursts require a strong power source and battery planning.
- GPIO is 3.3 V only; MODE and RESET are active-low control pins.
- Some pins are reserved or have Device OS functions.
- Check antenna and carrier-region compatibility before deployment.
Interfaces
GPIOI2CSPIUARTADCPWMUSBBluetooth
Source-backed connector
Interactive pin map
Pin map
Connector
Particle Gen 3 side headers
Signals grouped by function — schematic layout, not to physical scale
Dense header — open Full view for a roomier, fully-labelled diagram.
Simplified diagram, grouped by function — not to physical scale. Pin data is source-backed; verify against the linked documentation.
Hover, tap, or focus a pad to inspect a pin. Use arrow keys to move between pins.
- All GPIO is limited to 3.3 V.
- MODE and RESET are active-low control signals; avoid loading them during startup.
- Particle Device OS may reserve or reconfigure pins for cellular, Wi-Fi, SPI, and system functions.
All 27 pins (table)
| # | Signal | Role | Net | Also / notes |
|---|---|---|---|---|
| Analog | ||||
| 1 | ADC | |||
| 2 | ADC | |||
| 3 | ADC | |||
| 4 | ADC | |||
| 5 | ADC | |||
| 6 | ADC | |||
| Digital GPIO | ||||
| 2 | PWM | |||
| 3 | PWM | |||
| 4 | PWM | |||
| 5 | PWM | |||
| 6 | PWM | |||
| 7 | PWM | |||
| 8 | PWM | |||
| Buses | ||||
| 1 | I2C | I2C | ||
| 2 | I2C | I2C | ||
| 3 | SPI | SPI | ||
| 4 | SPI | SPI | ||
| 5 | SPI | SPI | ||
| 6 | UART | UART | ||
| 7 | UART | UART | ||
| Power and control | ||||
| 1 | Power | LI+ | ||
| 2 | Power | VUSB | ||
| 3 | Power | 3V3 | ||
| 4 | Ground | GND | ||
| 5 | System | |||
| 6 | System | |||
| 7 | System | |||
Why it matters
- Official datasheet includes pin map and power states.
- Particle Cloud and OTA workflows are built in.
- Li-Po support suits remote sensor prototypes.
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