# Arduino Nano BLE Sense 33 second serial port

**URL:** <https://community.sparkfun.com/t/arduino-nano-ble-sense-33-second-serial-port/41289>\
**Category:** Qwiic System\
**Tags:** qwiic\
**Created:** [January 12, 2021, 12:38am UTC](https://community.sparkfun.com/t/arduino-nano-ble-sense-33-second-serial-port/41289 "2021-01-12T00:38:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gswonk](https://avatars.discourse-cdn.com/v4/letter/g/df705f/32.png) [@gswonk](https://community.sparkfun.com/u/gswonk)\
**Post date:** [January 12, 2021, 12:38am UTC](https://community.sparkfun.com/t/arduino-nano-ble-sense-33-second-serial-port/41289/1 "2021-01-12T00:38:04Z")

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Is there a simple method for adding a second (USB/RS232 preferred) serial port via a QWIIC interface?

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**Author:** ![YellowDog](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/yellowdog/32/1782_2.png) [@YellowDog](https://community.sparkfun.com/u/YellowDog)\
**Post date:** [January 12, 2021, 5:26pm UTC](https://community.sparkfun.com/t/arduino-nano-ble-sense-33-second-serial-port/41289/2 "2021-01-12T17:26:08Z")

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It won’t be simple but you could program an an arduino to be a I2C slave and code it to translate I2C to serial and back.

Arduino has a tutorial you could probably bend to your needs.

[https://www.arduino.cc/en/Tutorial/Libr … sterWriter](https://www.arduino.cc/en/Tutorial/LibraryExamples/MasterWriter)