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+--- Forum: KC868-A series and Uair Smart Controller (https://www.kincony.com/forum/forumdisplay.php?fid=6)
+--- Thread: Digital inputs.... (/showthread.php?tid=2668)
Digital inputs.... - Amaral989 - 03-10-2023
Hello everyone,
I have a question concerning digital inputs.
I have a RV, motorhome, that I would like to monitor.
So is it possible to provide 12vdc to the digital input.
Actually, it depends on the battery voltage , but it can probably reach up to 14.7 volt dc.
Will the digital input accept max of 14.7 volt.
Thank you
John A
RE: Digital inputs.... - admin - 03-10-2023
if you using KC868-A series board , no problem, you can use it.
RE: Digital inputs.... - primeroz - 04-16-2023
I do have the same question for the KC868-A4 board.
I see the board uses el357 optocoupler on the digital inputs but I found no information on the accepted input voltage.
Can you provide any information?
I have a doorbell that output 12DC when ringing and I want to connect it to one of the Digital Input. Will it work ?
What is the minimum and maximum input voltage the digital input can safely get to activate the input ?
Thank you
RE: Digital inputs.... - admin - 04-17-2023
Digital Inputs - Supports Dry contact or voltage in.
(dc 0-12V).
Logical “0” : dc 0-4V
Logical “1” : dc 6-12V
RE: Digital inputs.... - canitan - 11-06-2024
I have the KC868-A8-V1.6
I'd like to bring in 24v and 48v inputs into the digital in. Can I bring this in directly, or should I put in a resistor or resistor divider?
The voltages are 24vdc +-10% and 48vdc +-10%
Thank you!
RE: Digital inputs.... - admin - 11-06-2024
no, it will broken your board. KC868-A8 use 12V power supply, The digital input ports use 0V or 12V for different logical "1" and "0".
RE: Digital inputs.... - Que - 02-10-2025
(11-06-2024, 11:58 PM)admin Wrote: no, it will broken your board. KC868-A8 use 12V power supply, The digital input ports use 0V or 12V for different logical "1" and "0".
how can i connect wiegand reader in this board (Wiegand reader need 2 inputs DATA0 and DATA1 and i was work ur (2 channel esp32 4G relay board – KC868-A2 models) and i can connect only one wiegand reader(GPIO 1 and GPIO2) Dry contacts doesnt work for me beacuse Optokuplör.
RE: Digital inputs.... - admin - 02-10-2025
KC868-A2 have only 2 free gpio, use by one wiegand device.
RE: Digital inputs.... - Que - 02-12-2025
(02-10-2025, 03:03 PM)admin Wrote: KC868-A2 have only 2 free gpio, use by one wiegand device.Can you tell me which model uses an optocoupler and its speed?
RE: Digital inputs.... - admin - 02-12-2025
all our controller, digital input ports with optocoupler, the speed need check with optocoupler's datasheet.