Thinking of a new gadget...

[Csory_imp]

Max: Thanks again for your comments!

I agree that the document is quite overwhelming. Will try and cut it down a bit. Should have stressed that the sensor "setup" section is optional, not required (or recommended) for "normal" users (except for the Celsius-Fahrenheit and display adjustments). Will consider moving these into a separate adjustment menu with ample warnings at the beginning .

The arrows were indeed wrong.

Values can be changed using the rotary function. Pushing the button (click) will save that value and jump to the next menu element. There is no "back" step on the menu tree - one will have to re-enter it from the beginning. (Tried to explain it in the doc but will go back and re-phrase.)

The 6-pin connector on the central module is water resistant (i.e. water can get into it, but will do no harm). However, the blind plug should be kept in place to prevent debris from clogging the socket.

Both the ISP programmer and the rotary encoder can be plugged in rotated 180 degrees. It just won't work, but will do no harm. (There are clear markings though to show which way is the right way...)

Meanwhile, started assembling four units. These are the central modules, before hot air soldering...