Wio-SX1262 for XIAO

Features / Specs

• Manufacturer: Seeed Studio
• Part Number: 113010003
• Main Module: Seeed Wio-SX1262 (Semtech SX1262 LoRa Transceiver)
• Antenna Connection: Male IPEX MHF-I / U.FL Socket on the Wio-SX1262 module (50 Ω), for the included Seeed XIAO FPC Antenna A-03 (860 – 930 MHz)
• Operating Voltage Range (Module): 1.8 – 3.6 V (supplied at 3.3 V from the XIAO’s 3V3 pin – the VIN pin is not used on this board)
• Transmit Current (Typical): 125 mA @ +22 dBm
• Receive Current (Typical): 7.6 mA @ 125 kHz bandwidth
• Sleep Current (Typical): 1.62 μA
• Communication Interface: SPI, to the host XIAO through the pin headers
• Frequency Range: 862 – 930 MHz
• Transmit Power (Max): +22 dBm
• Receive Sensitivity: -136.73 dBm @ SF12, 125 kHz (including line loss)
• Modulation: LoRa / (G)FSK
• LoRa Bandwidth Range: 7.8 – 500 kHz
• RF Switching: Transmit/receive switching is driven by the SX1262’s DIO2 (high = transmit)
• Reference Oscillator: TCXO, powered from the SX1262’s DIO3 (1.7 – 3.3 V, set in software)
• Host Board Compatibility: Seeed Studio XIAO form factor – the XIAO plugs into the sockets on top, no soldering needed; Seeed documents it with the XIAO nRF52840, and its XIAO ESP32-S3 kit datasheet states this board is not compatible with the XIAO ESP32-S3 (Seeed pairs the S3 with the board-to-board version of the Wio-SX1262 instead)
• Stacking with the L76K GNSS Module for XIAO: Both boards use D0 (this board’s user button, the L76K board’s wake-up) and D2 (reset on both) – holding the button puts the GNSS module to sleep, and a radio reset also resets it
• Meshtastic Firmware: Supported by Meshtastic’s stock firmware on the XIAO nRF52840 (“Seeed Xiao NRF52840 Kit” target); other XIAO boards need firmware built with this board’s pin definitions
• Onboard Peripherals:
  • Buttons: User button on D0, reads low when pressed (10 kΩ pull-up)
  • LEDs: None
• Operating Temperature Range (Module): -40 °C to +85 °C
• Storage Temperature Range (Module): -40 °C to +105 °C
• Certifications (Module): FCC (FCC ID Z4T-WIO-SX1262) / CE
• Dimensions (L x W x H): ~(21.5 x 17.9 x 9.2 mm) – height to the header plastic, not the pin tips
• Module Package: 12-pin SMT
• Module Dimensions (L x W x H): (11 x 11.6 x 2.95 mm) ±0.2 mm
• Number of Pins: 2x 7 pins (14 total)
• Header Type: Fitted stacking headers – female sockets on top for the XIAO, male pins underneath
• Header Pin Pitch: 2.54 mm
• Pin Row Spacing (Centre to Centre): 15.24 mm

Resources

• XIAO nRF52840 & Wio-SX1262 Kit for Meshtastic Getting Started (Seeed Studio Wiki)
• Seeed Studio Wio-SX1262 for XIAO Product Datasheet (PDF)
• Seeed Studio Wio-SX1262 for XIAO Schematic V1.0 (PDF)
• Seeed Studio Wio-SX1262 Module Datasheet V1.1 (PDF)
• Semtech SX1262 Product Page

Pin Description