nodeRED

[{"id":"c1aa339b.e595","type":"function","z":"19f59565.faffdb","name":"Combined T, H, PM2.5","func":"var newmsg = {};\n\ncontext.data = context.data || {};\n\n\nswitch(msg.topic){\n    case \"nodeREDmanisa/sensorC/PM25\":\n        context.data.PM25 = parseInt(msg.payload);\n        msg = null;\n        break;\n    case \"nodeREDmanisa/sensorC/temperature\":\n        context.data.temperature = parseFloat(msg.payload);\n        msg = null;\n        break;\n    case \"nodeREDmanisa/sensorC/humidity\":\n        context.data.humidity = parseFloat(msg.payload);\n        msg = null;\n        break;\n    default:\n        msg = null;\n        break;\n}\n\nif (context.data.PM25 != null &&\n    context.data.temperature != null &&\n    context.data.humidity != null) {\n        var time = Date();    \n        context.data.time = time.toString();\n        newmsg = { payload: context.data,\n        topic: 'SensorA' };\n    return newmsg;\n} else\n    return msg;\n\n\n","outputs":1,"noerr":0,"x":600,"y":280,"wires":[["8e5a5df0.cd031"]]}]