Hello guys, I need to read and write information in the .dat file. This file has a programming in C language. In it I have variables and logic. I would like to know if there is a way to read this file from a location on my computer, and change the values of a variable. For example. read bool pos…

Assuming the file is on the machine running node red (which may not be the one the browser is running in) then you can use a File In node to read the file, then make whatever changes you want and write it again using a File Out node.

Do you show me make do this? Please Tks

The fact that you have to ask this makes me think you must be a beginner with node-red. If so then 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.…

Thaks for you help. I am watch this playlist

Yes Colin, thanks for you reminder. Best regards

Read and Write .dat files

Developing Nodes

Colin 12 February 2021 16:44 6

I notice that you stopped replying on your earlier thread, leaving it unsolved. If you found the cause of the problem you should post it on that thread so that others who find it may be helped.

Topic		Replies	Views
Change Value on file General	4	339	8 March 2021
Read data from a .txt-file with 'file in'-node General	14	23725	3 October 2020
File node install & Write file sample Developing Nodes	3	538	3 September 2020
Creating a flow to show data from CSV FILE Dashboard	4	890	8 September 2021
Read a txt file without write protection General	14	566	7 December 2020

Read and Write .dat files

Related topics