Library for Arduino and ATmega series processors to read the processor's Vcc voltage and percentage of capacity (for battery based projects) using *absolutely* no external components or connections!
The product being analyzed is a CPU voltage measuring feature that allows users to measure the voltage of the processor or retrieve the percentage of charge for battery-based systems. It uses the internal registers of Microchip (Atmel) ATMega processors and does not require any external parts or connections.