Skip to main content

Welcome to Photon 2 Developer Docs

The Photon 2 is a Gen-4 Wi-Fi and Bluetooth development board in the Particle family of devices. It provides dual-band wireless connectivity in a Feather-compatible form factor for building connected products.

Photon 2 hero

Overview​

Photon 2 is based on the Realtek RTL8721DM system-on-chip, which combines a dual-core Arm Cortex-M33 microcontroller with integrated Wi-Fi (2.4 GHz and 5 GHz) and Bluetooth 5 LE.
The board supports multiple power options, offers a full set of mixed-signal GPIO, and includes both a PCB antenna and a U.FL connector for external antennas.

Key Features​

  • Wireless: Dual-band Wi-Fi (2.4 GHz and 5 GHz, 802.11a/b/g/n) and Bluetooth 5.0 (LE)
  • Processor: Realtek RTL8721DM (Arm Cortex-M33, dual-core, 200Mhz)
  • Form factor: Adafruit Feather compatible
  • I/O: Mixed-signal GPIO (SPI, I²C, UART, PWM, ADC)
  • Memory: 2 MB Flash, 3MB RAM
  • Power: 5 V (USB), 3.7 V Li-Po, or external supply
  • Antenna: On-module PCB antenna and U.FL connector for external antenna (software-selectable)
  • Certifications: FCC, CE, IC, RoHS