This isn’t about connecting a temperature sensor in your Arduino. This build is about using the temperature sensor in your clock. The ATMega328p, the chip at the heart of all your Arduino Uno ...

is applied to D2 input of the Arduino. Analog output (marked as AO) from the module is not used here. Sensor-head of the module contains two probes in a small metal pcb. When the sensor-head is ...

of the module is connected to an analog input (for example A0) on the Arduino you can expect to read a value of 0 (0V) when in its upright position and 1023 (5V) when it is tilted. The tilt sensor ...