Power Management:
Inputs (battery/solar) are conditioned via a charger, buck converter, boost converter, and a power switch to create the required supply rails.
Control and Processing:
The central processing element is the XIAO RP2040 microcontroller, which is powered by the regulated supplies.
Wireless Communication:
A LoRa module provides wireless connectivity and is interfaced with the microcontroller.
External Interfaces:
Additional connectors, user switches, and LED indicators serve as the external interface for input/output functions.