31 lines
898 B
C
31 lines
898 B
C
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#pragma once
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#include <cstdint>
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class BatteryMonitor {
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public:
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// Optional divider multiplier parameter defaults to 2.0
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explicit BatteryMonitor(uint8_t adcPin, float dividerMultiplier = 2.0f);
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// Read voltage and return percentage (0-100)
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uint16_t readPercentage() const;
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// Read the battery voltage in millivolts (accounts for divider)
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uint16_t readMillivolts() const;
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// Read raw millivolts from ADC (doesn't account for divider)
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uint16_t readRawMillivolts() const;
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// Read the battery voltage in volts (accounts for divider)
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double readVolts() const;
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// Percentage (0-100) from a millivolt value
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static uint16_t percentageFromMillivolts(uint16_t millivolts);
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// Calibrate a raw ADC reading and return millivolts
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static uint16_t millivoltsFromRawAdc(uint16_t adc_raw);
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private:
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uint8_t _adcPin;
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float _dividerMultiplier;
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};
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