65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
#ifndef INA219_H
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#define INA219_H
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#include <QObject>
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#include <hardware/i2c/i2cdevice.h>
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class Ina219 : public I2CDevice
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{
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Q_OBJECT
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public:
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enum VoltageRange {
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VoltageRange16 = 0,
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VoltageRange32 = 1
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};
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Q_ENUM(VoltageRange)
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enum GainVolts {
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GainVolts004 = 0,
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GainVolts008 = 1,
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GainVolts016 = 2,
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GainVolts032 = 3,
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};
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Q_ENUM(GainVolts)
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enum ADCBits {
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ADCBits9 = 0,
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ADCBits10 = 1,
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ADCBits11 = 2,
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ADCBits12 = 3
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};
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Q_ENUM(ADCBits)
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enum OperationMode {
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OperationModePowerDown = 0,
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OperationModeShuntVoltageTriggered = 1,
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OperationModeBusVoltageTriggered = 2,
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OperationModeShuntAndBusTriggered = 3,
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OperationModeADCOff = 4,
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OperationModeShuntVoltageContinuous = 5,
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OperationModeBusVoltageContinuous = 6,
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OperationModeShuntAndBusContinuous = 7
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};
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Q_ENUM(OperationMode)
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explicit Ina219(const QString &portName, int address, double shuntOhms, VoltageRange voltageRange, QObject *parent = nullptr);
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bool writeData(int fileDescriptor, const QByteArray &data) override;
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QByteArray readData(int fileDescriptor) override;
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signals:
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void measurementAvailable();
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private:
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double m_shuntOhms = 0.1;
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VoltageRange m_voltageRange = VoltageRange32;
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GainVolts m_gainVolts = GainVolts004;
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ADCBits m_busADC = ADCBits12;
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ADCBits m_shuntADC = ADCBits12;
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OperationMode m_operationMode = OperationModeShuntAndBusContinuous;
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double m_currentLSB = 0;
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};
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#endif // INA219_H
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