How do I use arduino json to send sensor values from uno to nodemcu. There are a lot of tutorials but from what I see json is always updating and some tutorials are outdated. Any information will help thanks. fyi I have 0 knowledge on using json I tried using software serial communication but there are issues regarding about it.
A JSON message is just a structured text message, so to get it from one device to another you need the devices to be linked. This is typically done using a serial link, although other methods are available.
So, if you could not get SoftwareSerial to work the using a JSON message is not going to help
What problems did you have with SoftwareSerial ?
at first nodemcu can receive the data from uno but after sometime it stops receiving the data serial monitor is just empty of node
Posting both the transmitter and receiver code would surely help.
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