More design and testing

The first option is under testing using first testing strategy .

Not surprisingly, we know that measurements are affected by the measuring action. This makes this project difficult because the parameter to test is shielded by 2 walls: The fridge wall and the thermos wall. Due to metal shielding by fridge hull we don't expect wi-fi , blue-tooth etc. to penetrate through so we have to run wire from outside the fridge to the freezer compartment. We also have to drill the thermos box stainless steel to fit the temperature sensor. Option 2 is on hold right now because the materials that were supposed to arrive in January never arrived. After a lot of back and forth with the supplier we had to cancel the order and reissue another order with a different supplier. To keep costs down we had to choose inexpensive delivery.