Hi i need a bit of help and be prepared as this will be quite long winded.
For part of my project i require a temperature sensor and alarm. however it needs to be dynamic. i am using a LM35. what it needs to do is output a small buzz when it reads within a certain temperature range using a piezo (for example 40-50 degrees) the thing is is that i need this to be able to change. it will have a single tact switch for control. should the switch be pressed within the temperature range it will deactivate the piezo however should it be pressed outside of the temperature range that temperature should become the target temperature (for example the range is 40-50 degrees but if the button is pressed when it is is 30 degrees the range becomes 25-35 degrees) this range change needs to be persistent even if it is turned off. this is far more complex than my current coding skill and i don't know if this is do-able. if someone could send me towards a relevant tutorial or give me a bit of help. thanks.