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node.jsnode-red

Node-Red Indicator on the Dashboard

I am sure it is very easy but I am struggling.

I am trying to use a button as an indicator on the Node-Red Dashboard from a Modbus TCP connection as the picture shows:

enter image description here

The formula in the function is as follows:

if (msg.payload === 28){
    msg.colour = "green";
    msg.background ="red";
    return msg;}
else{msg.colour ="white";
return msg;}

However the button on my dashboard does not change colour.

Can anyone here help please?

I am open to other suggestions to make an indicator in Node-Red's dashboard.

EDIT I have edited the typo.

Solution

    1. Make sure you have configured the ui_button node's Colour field to be {{msg.colour}} and Background to be {{msg.background}}. That tells the node what msg properties to look for to set those fields.

    2. Fix the typo in your function - you are setting msg.backgroud not msg.background