You have a micro controller and two identical sensors, meaning that they have the same I2C address. Without a multiplexer or the possibility to configure the I2C address of the sensor, you cannot ...

Arduino & External EEPROM Now we have the key hardware handy. Now we can begin an experiment by connecting it with an Arduino board to write to and read from the EEPROM chip. We can write anything we ...

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As you can see in the schematic all three TC74 sensors have their SDA and SCL pins connected in series to pin A4 and A5 on the Arduino board. The two 4.7K pull-up resistors must be used when using I2C ...