hi, I need to create a file from the data received from mqtt. this file are the parameters of the
controller (approximately 1.2 Kbyte in size).
I’m thinking of sending about ten blocks of data from mqtt followed by the crc on json format and using filewrite on nodered to add the data to the txt file.
but I don’t understand how to use filewrite on nodered and what path should I need to insert to allow storage in my “filestorage”.
once stored then I will have to think about reading and sending data to the controller to recover the parameters.
if you have any solution ,the device I use is an esp32.