I am newer to the coding world, attempting lesson 23. I have run into a problem with my LCD not displaying my Temperature. I have rewired again and again with no success.
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Welcome to the forum
That’s all interesting but if you want any help with it you will need to provide some information and ask specific questions. Try reading this
It will give you ideas on how to formulate a good question to get the help you need
To get the most complete and fastest help:
Post your test code using code tags. See the how to get the best of the forum post for how to use code tags. Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.
Post a diagram showing how the LCD and sensor are wired. Hand drawn, photographed and posted is fine. Include all pin names/numbers, components, their part numbers and/or values and power supplies.
Post links to the technical data for the sensor.
Post clear photos showing your wiring.
Check if the LCD is working properly by using a test code. Second check if the Thermoresistor is working by using a test code. If both are working, than try to display a value from the thermoresitor ( from 0 to 1024 ) on the LCD. If that work, You just need the convert the 0 to 1024 into C or F display into the LCD.
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Yes Yes 
As @sergetechone said.
I Always prove out each device on its own and then assemble your code.
For each device I've used I've saved the "prove-out" code for use the next time.
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