Designed with the popular Feather form factor, the Xenon is compatible with Feather Shields. It includes a JST connector for Li-Po batteries with integrated USB charging, making it suitable for portable applications. The board also features an RGB status LED, a JTAG (SWD) connector for debugging, and an onboard PCB antenna.
Features
- Processor: Nordic Semiconductor nRF52840 SoC (ARM Cortex-M4F 32-bit processor @ 64MHz, 1MB flash, 256KB RAM)
- Networking: OpenThread mesh networking (IEEE 802.15.4), Bluetooth 5 (2Mbps, 1Mbps, 500Kbps, 125Kbps), NFC-A tag support
- Security: ARM TrustZone CryptoCell-310, DSP instructions, HW accelerated FPU
- I/O: 20 mixed signal GPIOs (6x Analog, 8x PWM), UART, I2C, SPI
- Power: Integrated Li-Po charging with JST connector, on-board 2MB SPI flash
- Connectivity: On-board PCB antenna, u.FL connectors for external antennas
- User Interface: RGB status LED, Reset and Mode buttons
- Certification: FCC, CE, IC certified, RoHS compliant
- Physical Dimensions: Feather footprint compatible
Specifications
- ARM Cortex-M4F @64MHz
- 1MB flash, 256KB RAM
- IEEE 802.15.4-2006: 250 Kbps
- Bluetooth 5: 2 Mbps, 1 Mbps, 500 Kbps, 125 Kbps
- +8 dBm TX power (down to -20 dBm in 4 dB steps)
- NFC-A tag
- Micro USB 2.0 full speed (12 Mbps)
- JTAG (SWD) Connector
- RGB status LED
- U.FL connector for external antenna
- Dimensions: 50.8 x 22.8 x 15.3 mm
- Weight: 7.3g
Pinout Diagram

Pin Descriptions
Pin |
Description |
Li+ |
Internally connected to the positive terminal of the LiPo battery connector. |
VUSB |
Internally connected to the USB (+ve) supply. |
3V3 |
Output of the on-board 3.3V regulator. |
GND |
System ground pin. |
EN |
Device enable pin. Connect to GND to disable. |
RST |
Active-low system reset input. |
MD |
Connected to MODE button (active-low). |
RX/TX |
UART RX/TX, can also be used as GPIO. |
SDA/SCL |
I2C data/clock pins, can also be used as GPIO. |
MO/MI/SCK |
SPI interface pins, also usable as GPIO. |
D2–D8 |
Generic PWM-capable GPIOs. |
A0–A5 |
Analog inputs, also PWM-capable GPIOs. |
D4–D8 |
Serial2 TX/RX/CTS/RTS or general GPIOs. |
Applications
- Smart Home Automation: Control and monitor home devices using mesh and Bluetooth.
- Sensor Networks: For environmental, agricultural, or industrial monitoring.
- Wearable Devices: Ideal for health and fitness monitoring wearables.
- Industrial IoT: For machinery performance and predictive maintenance monitoring.
- Portable IoT Devices: Great for asset tracking and field monitoring.
- Building Automation: Automate lighting, HVAC, and security systems.
- Remote Monitoring: For weather, wildlife, or remote environmental tracking.
- Robotics: Ideal for collaborative or swarm robotics.
- Smart Cities: For public infrastructure and urban IoT networks.
- Prototyping: Great for rapid development using Feather Shields and sensors.
Designed with the popular Feather form factor, the Xenon is compatible with Feather Shields. It includes a JST connector for Li-Po batteries with integrated USB charging, making it suitable for portable applications. The board also features an RGB status LED, a JTAG (SWD) connector for debugging, and an onboard PCB antenna.
Features
- Processor: Nordic Semiconductor nRF52840 SoC (ARM Cortex-M4F 32-bit processor @ 64MHz, 1MB flash, 256KB RAM)
- Networking: OpenThread mesh networking (IEEE 802.15.4), Bluetooth 5 (2Mbps, 1Mbps, 500Kbps, 125Kbps), NFC-A tag support
- Security: ARM TrustZone CryptoCell-310, DSP instructions, HW accelerated FPU
- I/O: 20 mixed signal GPIOs (6x Analog, 8x PWM), UART, I2C, SPI
- Power: Integrated Li-Po charging with JST connector, on-board 2MB SPI flash
- Connectivity: On-board PCB antenna, u.FL connectors for external antennas
- User Interface: RGB status LED, Reset and Mode buttons
- Certification: FCC, CE, IC certified, RoHS compliant
- Physical Dimensions: Feather footprint compatible
Specifications
- ARM Cortex-M4F @64MHz
- 1MB flash, 256KB RAM
- IEEE 802.15.4-2006: 250 Kbps
- Bluetooth 5: 2 Mbps, 1 Mbps, 500 Kbps, 125 Kbps
- +8 dBm TX power (down to -20 dBm in 4 dB steps)
- NFC-A tag
- Micro USB 2.0 full speed (12 Mbps)
- JTAG (SWD) Connector
- RGB status LED
- U.FL connector for external antenna
- Dimensions: 50.8 x 22.8 x 15.3 mm
- Weight: 7.3g
Pinout Diagram

Pin Descriptions
Pin |
Description |
Li+ |
Internally connected to the positive terminal of the LiPo battery connector. |
VUSB |
Internally connected to the USB (+ve) supply. |
3V3 |
Output of the on-board 3.3V regulator. |
GND |
System ground pin. |
EN |
Device enable pin. Connect to GND to disable. |
RST |
Active-low system reset input. |
MD |
Connected to MODE button (active-low). |
RX/TX |
UART RX/TX, can also be used as GPIO. |
SDA/SCL |
I2C data/clock pins, can also be used as GPIO. |
MO/MI/SCK |
SPI interface pins, also usable as GPIO. |
D2–D8 |
Generic PWM-capable GPIOs. |
A0–A5 |
Analog inputs, also PWM-capable GPIOs. |
D4–D8 |
Serial2 TX/RX/CTS/RTS or general GPIOs. |
Applications
- Smart Home Automation: Control and monitor home devices using mesh and Bluetooth.
- Sensor Networks: For environmental, agricultural, or industrial monitoring.
- Wearable Devices: Ideal for health and fitness monitoring wearables.
- Industrial IoT: For machinery performance and predictive maintenance monitoring.
- Portable IoT Devices: Great for asset tracking and field monitoring.
- Building Automation: Automate lighting, HVAC, and security systems.
- Remote Monitoring: For weather, wildlife, or remote environmental tracking.
- Robotics: Ideal for collaborative or swarm robotics.
- Smart Cities: For public infrastructure and urban IoT networks.
- Prototyping: Great for rapid development using Feather Shields and sensors.