Arduino for heating system thermostat and garden irrigation timer

This is my Arduino project for home heating system thermostat and garden irrigation timer.
The project was developed just for fun: I had no previous knowledge of electronics; and the code is awful, being hacked from time to time with no particular design in mind. But it’s fun, most of the time it works
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Arduino: how I use it

I’m using Arduino for some time now to automate the heating system and the garden irrigation system.

Having a Linux box installed near my Arduino in my “workroom/lost time office”, I find much more convenient to interface to the Arduino from the Linux computer itself, than connecting a PC and using the usual IDE.

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Recover saved wifi passwords after changing wireless adapter

I changed the WiFi NIC in my notebook. After that I discovered that the new NIC did not have access to the saved WiFi secrets that where saved prior to chaning it.

I ran a well known utility from NirSoft, wirelesskeyview. Thank you again, Nir.
The utility confirmed what was easy to argue, that
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