Datasheet

You can also use direct wires, we happen to have a Cobbler ready. remember you can plug the cobbler into the

bottom of the PiTFT to get access to all the pins!

Now you should be able to verify that the sensor is wired up correctly by asking the Pi to detect what addresses it can

see on the I2C bus:

It should show up under it's default address (0x69). If you don't see 0x69, check your wiring, did you install I2C

sudo i2cdetect -y 1