Global Variable Values to a file or E-mail

General
1

Hi,
I have now worked out how to get my sensor data stored in global variables with the change node, so how do I get all the values into a file or an email ?

Thanks
Stuart

2

By using the "write file" and "email" nodes. Read the help for each to get you started.

3

Unfortunately the help files "write File" and "email" don't really help me as there is no mention of using system variables within your text.

Thanks
Stuart

4

Do you know how to get data from your variable into a message? As msg.payload for example?

What happens when you send msg.payload into a Write-file node?
Is it the same for the email node, or does the node help tell you how to get a message property into the email body?

5

I recommend watching this playlist: Node-RED Essentials. The videos are done by the developers of node-red. They're nice & short and to the point. You will understand a whole lot more in about 1 hour. A small investment for a lot of gain.

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