Node-RED/CheatSheet

Global variables

var labelmode = global.get("labelmode")

Node Status

node.status({fill:"gray",shape:"dot",text:msg.serialnumber + " = " + msg.pclass + "W"});

Stop messages

if ( ...)) { 
return null; 
} else {
return msg;
}

InfluxDB

• write data with custom timestamp

var timestamp = new Date(date + 'Z').getTime() * 1e6

msg = { payload : { value: value,
                    time: timestamp },
        measurement: topic }