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Pololu-Romi-32U4-Carte-Alimentation (voir la source)
Version du 15 juin 2019 à 21:34
, 15 juin 2019 à 21:34→Power switch circuit
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{| class="wikitable" border="1"
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| align="center" | Titre1
| align="center" | Broche
| align="center" | Description
| align="center" | Description
|- style="font-size: 90%"
|- style="font-size: 90%"
| align="left" | xx
| align="left" | PWRA
| align="left" | yyyy
| align="left" | Connect through momentary switch to pin “PWRB” for standard push-on/push-off operation. Connect through momentary switch to ground for on-only operation.
|- style="font-size: 90%"
|- style="font-size: 90%"
| align="left" | xx
| align="left" | PWRB
| align="left" | yyyy
| align="left" | Connect through momentary switch to pin “PWRA” for standard push-on/push-off operation.
|- style="font-size: 90%"
|- style="font-size: 90%"
| align="left" | xx
| align="left" | ON
| align="left" | yyyy
| align="left" | A high pulse (> 1 V) on this pin turns on the switch circuit. This pin only functions when pushbutton operation is enabled (i.e. ''the button jumper has not been cut'').
|- style="font-size: 90%"
| align="left" | OFF
| align="left" | A high pulse (> 1 V) on this pin turns off the switch circuit (e.g. allowing a powered device to shut off its own power). ''This pin only functions when pushbutton operation is enabled''.
|- style="font-size: 90%"
| align="left" | CTRL
| align="left" | With pushbutton operation enabled, this pin directly determines the state of the switch circuit. A high pulse (> 1 V) on this pin turns on the switch; a low pulse (e.g. driving the pin low with a microcontroller output line or pushing a button connected from this pin to ground) turns the switch off. Leave this pin disconnected or floating when not trying to set the switch state. {{underline|Note that this pin should not be driven high at the same time the “OFF” pin is driven high}}.
|- style="font-size: 90%"
| align="left" | GATE
| align="left" | With pushbutton operation disabled (button jumper cut), this pin controls the state of the switch circuit: driving it low turns the switch on, while letting it float turns the switch off. Connect through slide or toggle switch to ground for on/off operation. Leave this pin disconnected or floating for proper pushbutton operation. We recommend only ever driving this pin low or leaving it floating; {{underline|this pin should never be driven high while the slide switch is in the “On” position.}}
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