Knowledge Base

Let’s imagine a simple situation. PcVue receives values like temperature in an MQTT topic. The device sends a value in the dev.temperature JSON key of an MQTT topic.

Here is an example JSON:

{
    “eui”: “18-B2-20-00-02-27”,
    “dev.temperature”: 28.5,
    “test”:”test”,
    “device_type”:”Temp”
}

Use a ‘[‘x.y’]’ format to extract data when the keyword contains a character such as the dot: “.”.

The use of ‘ or ” is accepted.

Following the sample, the following format should be used: JsonGetValue(value,'[‘dev.temperature’]’)