===== Analog input value =====

==== adc( inputnumber ) ====

Returns the value of a physical input.

=== Description ===

<code>adc( inputnumber )</code>

Returns the value read on the ADC for the given input.

=== Parameters ===

| ''inputnumber'' | Physical input number (1-8) |

=== Return value ===

This function returns the value read on the given input. The unit depends on the configured mode.

^ Input configuration ^ Unit returned by this function ^
| Voltage | mV |
| Current | uA |
| Resistance | Ohm |
| Thermistor | Degrees Kelvin |
| Pulse | Interval in ms |

=== Example usage ===

<code>adc( 4 )</code>

Returns the value read from input #4