I am new to node red, I will appreciate your help and guidance, please.
I am working on flow in node red, this flow has three function nodes:
founction1 received data from temp a sensor and function 2 is received data from temp a sensor, then both of them send messages payload to function 3. After that function 3 insert the data to cloudant db node. I want to read only the last documents for both sensors then compare the reading. Any advice or help will be appreciated