Do I Need an External Pull-up Resistor for I2C Sensor on Fermion: BLE Sensor Beacon?

If you are using DFRobot's Gravity or Fermion series sensors. The I2C pull-up resistors for our sensors are built in on the sensors.
If you are using an I2C sensor from another manufacturer and do not have a pull-up resistor. You can solder the TEL0168's on-board pads to connect the TEL0168's on-board pull-up resistors.