Function node programming for LED signaling

General
1

I would appreciate suggestions on how to best program the function node to get a signalling lamp to respond accordingly to the analog input levels. In advance, thanks for your response.

grafik
grafik914Ă—464 32.7 KB

2

If you use 3 outputs, what should be the on/off value that should be sent?

3

Something like:

const val = msg.payload;
// default value is false
const outputs = [false, false, false];

if (val >= 150 && val <=799) {
  outputs[0] = true;
} else if (val >= 800 && val <= 919) {
  outputs[1] = true;
} else if (val >= 920) {
  outputs[2] = true;
}
// format to object with payload
return outputs.map((v) => ({ payload: v }));
4

the led's should go off as soon as the led colour changes, so if example the value exceeds 799, then green goes off and yellow goes on.

5

Thanks, I'll try your suggestion out and let you know how it went.

6

Thanks, just did a quick test and it seemed to work just fine, I will play with it some more tomorrow, but thanks a lot, I really appreciate your help.

7

It works well, thanks again :smile:

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8

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