diff --git a/lib/MeasureUnit/Adc.cpp b/lib/MeasureUnit/Adc.cpp
new file mode 100644
index 0000000..c39a2f6
--- /dev/null
+++ b/lib/MeasureUnit/Adc.cpp
@@ -0,0 +1,21 @@
+#include "Adc.h"
+
+Adc::Adc() : _lastChannel(0), _adcSetting(0,0)
+{
+  //Serial.println("Adc constructor called");
+}
+
+Adc::~Adc()
+{
+  
+}
+
+void Adc::setAdcSetting(AdcSetting adcSetting)
+{
+  _adcSetting = adcSetting;
+}
+
+AdcSetting Adc::getAdcSetting()
+{
+  return _adcSetting;
+}
diff --git a/lib/MeasureUnit/Adc.h b/lib/MeasureUnit/Adc.h
new file mode 100644
index 0000000..43eb0ca
--- /dev/null
+++ b/lib/MeasureUnit/Adc.h
@@ -0,0 +1,26 @@
+#ifndef ADC_H
+#define ADC_H
+#include "AdcSetting.h"
+
+class Adc
+{
+  public:
+    virtual ~Adc() = 0;
+
+    virtual void begin() = 0;
+    virtual int32_t sampleValue(int16_t channel, boolean sgl = true) = 0;
+    virtual int32_t sampleValue() = 0;
+    virtual double sampleVoltage(int16_t channel, boolean sgl = true) = 0;
+    virtual double sampleVoltage() = 0;
+
+    void setAdcSetting(AdcSetting adcSetting);
+    AdcSetting getAdcSetting();
+  protected:
+    Adc();
+    
+    int16_t _lastChannel;
+    AdcSetting _adcSetting;
+  private:
+};
+
+#endif //ADC_H