If the analog output (AO) 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 ...

The I2C bus or TWI (Two Wire Interface) allows a single master IC to share communication lines with multiple slave ICs. In our case Arduino is the master and 3 x TC74 sensors are the slaves. As you ...