How to make Led blinking

[dp_palai]

Hi, I have a requirement where I am using a Led to show the device is switched ON. Led remains ON as long as the device is running. I configure a Led for it. But my additional requirement is that Led should blink when it remains ON. I am struggling to get how to do that. Please help. Thanks in advance.

• This topic was modified 3 years, 1 month ago by dp_palai.

[JW]

the trick is set two “ON” states for your led, and toggle between them.
set a led with condition
0; 1; 2 for silver; light green; green.

assume you have multiple led, they should blink at the same time.

step 1, defind a function in formula, which is the value of second of current time.
———
double Second(DateTime dt){
double en_dt = EncodeDate(dt);
double s = Math.Truncate(en_dt * 24 * 60 * 60) % 60;
return s;
}
——–

you can have 1 input channel for device status, e.g. Cnl 1001
0; 1 for off; on

then you setup an other channel for led, e.g. 1002,
set formula
Val(1001)==0?0:Val(1001)+Second(DateTime.Now)%2

then the value will toggle between 1 and 2 every second when the device is on, and remain 0 when the device is off.

[Mikhail]

Hi,
In addition to the previous answer.
Color also can be taken from channel status.
Channel value 1 means that device is running.
Custom channel statuses may change led color.
So channel formula could be Cnl; (Second(DateTime.UtcNow) % 2) > 0 ? 101 : 102
where 101 and 102 your custom statuses specified in the Event types table.
And in the Scheme editor specify the Status color.

• This reply was modified 3 years, 1 month ago by Mikhail.

[dp_palai]

Thanks, Mikhail for a prompt response.

[dp_palai]

Thanks a lot, JW!. You are amazing.

[Caramel Macchiato]

I tried it, It’s cannot change per second??

[Mikhail]

Could you specify your question?

[dp_palai]

@caramel-macchiato It worked for me. So you must be missing some steps while configuring all required areas.

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