ADC Gain
-========
-single-ended resolution: 0.001074 V .. 1.1000 V
-differential resolution 8x gain: 0.000134 V .. 0.1375 V
-differential resolution 20x gain: 0.000054 V .. 0.0550 V
-differential resolution 32x gain: 0.000036 V .. 0.0344 V
+======== 0.033R sensign res.
+single-ended resolution: 0.001074 V .. 1.1000 V 32.55 .. 33333 mA
+differential resolution 8x gain: 0.000134 V .. 0.1375 V 4.06 .. 4166 mA
+differential resolution 20x gain: 0.000054 V .. 0.0550 V 1.64 .. 1666 mA
+differential resolution 32x gain: 0.000036 V .. 0.0344 V 1.09 .. 1042 mA
analog input resistance 100 MOhm
darkness: 3.71 V => 4.31 MOhm
bathroom without lights, only outside lights: 3.68 V => 4.18 MOhm
kitchen light: 3.29 V => 2.89 MOhm
+room 30min before midnight: 0.26 V => 82 KOhm
+outside 30min before midnight: 0.05 V => 15 KOhm
bathroom halogen lights 0.02 V => 6 KOhm
battery light: 0.01 V => 3 KOhm