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
LoRa TX Max Power: 20dBm SubG / 11.5dBm 2.4G
Bluetooth LE Antenna
Bluetooth TX Max Power: 6dBm
USB-C: Power and Data
Battery Connector: 3-pin Molex PicoBlade
Mounting Holes: 3x M2
Board Size: 42x32mm
Weight: 10g

Looking for Technical Details?
In our resources section for the BASE System we provide an evolving user guide, documentation and downloads including spec sheets, schematics, software source files and more.

Meshtastic Base Board System