Base Duo

The heart of your Meshtastic® radio, engineered for performance and reliability. Featuring IO designed for ultimate flexibility. Dual Band LoRa.

Main Features

• Microcontroller: nRF52840
  
• LoRa Radio: LR1121
• 8MB QSPI Flash
  
• Buttons: User + Reset
• QWIIC / STEMMA QT Port
• Flexible IO: 8 GPIO + 2 Power IO + UART + I2C
• Meshtastic® Flashed and Licensed

Power System

• Compatible Battery Chemistry:
  • Li-ion
  • LFP (LiFePO4)
• Solar Power Input with VDPM
• USB-C Power:
  • 500mA Default Charge
  • 1A Fast Charge option
• Powerpath: Prevents battery discharge when power source is available
• Safety Protections:
  • Input Overvoltage Protection
  • Battery Undervoltage Protection
  • Battery Short Protection
  • Battery Overcurrent Protection
  • Input Current Limit Protection
  • Thermal Regulation and Thermal Shutdown
  • Battery Thermal Fault Protection
• Advanced Charger IC: BQ28185

Product Includes

• Base Duo Board
• Sub-GHz LoRa Stubby Antenna
• 2.4GHz LoRa FPC Antenna
• Mounting Screws + Hex Key
• USB-C Cable

Specs

• Sub-GHz LoRa Connector: SMA
• 2.4GHz LoRa Connector: U.FL
• USB-C: Power and Data
• Bluetooth LE Antenna
• Battery Connector: 3-pin Molex PicoBlade
• Mounting Holes: 3x M2
• Board Size: 42x32mm
• Weight: 10g