![]() ![]() Most Atmel microcontrollers embed an internal voltage reference which can be used for these purposes and this library helps to simplify operating with them. ![]() Many projects need to know the voltage present at their Vcc pin (also referred as 5V or 3V3), sometimes to monitor their own battery level (voltage gets lower during discharge), sometimes to level up analog reads (reading an analog pin implies a voltage comparison). Please, before submitting a support request read carefully this README and check if an answer already exists among previously answered questions: do not abuse of the Github issue tracker.
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