21 lines
498 B
C++
21 lines
498 B
C++
#include "analog.hpp"
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namespace pimoroni {
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uint16_t Analog::read_raw() {
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adc_select_input(pin - 26);
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return adc_read();
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}
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float Analog::read_voltage() {
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adc_select_input(pin - 26);
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float voltage = ((((float)adc_read() * 3.3f) / (1 << 12)) + offset) / amplifier_gain;
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return MAX(voltage, 0.0f);
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}
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float Analog::read_current() {
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if(resistor > 0.0f)
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return read_voltage() / resistor;
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else
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return read_voltage();
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}
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}; |