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For I<sup>2</sup>C communication, please be sure to remove all additional pull-ups on the I<sup>2</sup>C bus. u-blox modules include internal pull-ups on the I<sup>2</sup>C lines (sometimes called DDC in their manuals). Cut all I<sup>2</sup>C pull-up jumpers and/or remove them from peripheral boards. Otherwise, various data glitches can occur. See issues [38](https://github.com/sparkfun/SparkFun_Ublox_Arduino_Library/issues/38) and [40](https://github.com/sparkfun/SparkFun_Ublox_Arduino_Library/issues/40) for more information. We recommend running the I<sup>2</sup>C bus at 100kHz. For I<sup>2</sup>C communication, please be sure to remove all additional pull-ups on the I<sup>2</sup>C bus. u-blox modules include internal pull-ups on the I<sup>2</sup>C lines (sometimes called DDC in their manuals). Cut all I<sup>2</sup>C pull-up jumpers and/or remove them from peripheral boards. Otherwise, various data glitches can occur. See issues [38](https://github.com/sparkfun/SparkFun_Ublox_Arduino_Library/issues/38) and [40](https://github.com/sparkfun/SparkFun_Ublox_Arduino_Library/issues/40) for more information. We recommend running the I<sup>2</sup>C bus at 100kHz.
## Compatibility
v2 of the library provides support for generation 8, 9 and 10 u-blox GNSS modules. For generation 6 and 7, please see [this example (depricated)](https://github.com/sparkfun/SparkFun_Ublox_Arduino_Library/tree/master/examples/Series_6_7/Example1_GetPositionAndTime_Series_6_7).
## Contributing ## Contributing
If you would like to contribute to this library: please do, we truly appreciate it, but please follow [these guidelines](./CONTRIBUTING.md). Thanks! If you would like to contribute to this library: please do, we truly appreciate it, but please follow [these guidelines](./CONTRIBUTING.md). Thanks!