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→Utiliser une entrée analogique
So if you activate the connected device, the voltage turns on the input and the signal is evaluated as logic HIGH(1). If the device is deactivated (turned off), the state is evaulated as a logic LOW(0). Using this, you can read for example S0 impulses from energy meters (water meter, electricity meter, ...) or buttons, movement (PIR) sensors or magnetic contacts and many others.
So if you activate the connected device, the voltage turns on the input and the signal is evaluated as logic HIGH(1). If the device is deactivated (turned off), the state is evaulated as a logic LOW(0). Using this, you can read for example S0 impulses from energy meters (water meter, electricity meter, ...) or buttons, movement (PIR) sensors or magnetic contacts and many others.
== Utiliser une alimentation externe ==
To preserve galvanic isolation of the connected device and internal parts of UniPi, we recommend using external 5 - 24V DC power supply and follow the schematics shown below. Before connecting the device, make sure that jumpers JP2 - JP5 are configured acconrding to the [https://www.unipi.technology/helpcenter/download/ documentation of UniPi 1]. Please note that the negative pole of the power supply is be connected to the POx connector.
To preserve galvanic isolation of the connected device and internal parts of UniPi, we recommend using external 5 - 24V DC power supply and follow the schematics shown below. Before connecting the device, make sure that jumpers JP2 - JP5 are configured acconrding to the [https://www.unipi.technology/helpcenter/download/ documentation of UniPi 1]. Please note that the negative pole of the power supply is be connected to the POx connector.
[[Fichier:UniPi-entree-digitale-02.png]]
[[Fichier:UniPi-entree-digitale-02.png]]
{| class="wikitable" border="1"
|-
| align="center" | Notation
| align="center" | Description
|- style="font-size: 90%"
| align="left" | DI
| align="left" | Entrée digitale. Entrée de I01 à I12 (voir tutoriel concernant I13 et I14)
|- style="font-size: 90%"
| align="left" | Device
| align="left" | Périphérique (contact)
|- style="font-size: 90%"
| align="left" | 5-24V
| align="left" | Source d'alimentation externe
|}
{{UniPi-TRAILER}}
{{UniPi-TRAILER}}