PiXtend eIO Hardware Manual
Connection Notes
The following diagram illustrates the connection of analog voltage sensors to the analog
voltage inputs of PiXtend eIO Analog One.
The voltage inputs can be used for different tasks that require measuring a voltage. In
Figure 42, for example, a simple circuit with photosensitive resistor (LDR) or the evaluation
of a rotary potentiometer is shown.
The ground connections (GND) of external power supplies must be connected directly to
the GND terminals near the terminal strip of the analog inputs.
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Figure 42: Principle circuit diagram: connection of the analog voltage inputs
