Both the BMP180 and 280 sensors will work in a similar fashion, for either sensor, you may following the next instructions.
Turn on your raspberry Pi and let it boot up. Once you are logged in, run the following command
i2cdetect -y 1
You will presented with a map like the following:
0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- 77
This polls bus 1 of the i2c system, which is the one the model 3 uses.
Devices connected using i2c will be listed in this screen. In this case a device is connected at address 77.
