# Reading/Writing Multiple Serial Inputs and Outputs using NMEA protocol

**URL:** <https://forum.inductiveautomation.com/t/reading-writing-multiple-serial-inputs-and-outputs-using-nmea-protocol/19600>\
**Category:** Ignition\
**Created:** [September 10, 2018, 5:37am UTC](https://forum.inductiveautomation.com/t/reading-writing-multiple-serial-inputs-and-outputs-using-nmea-protocol/19600 "2018-09-10T05:37:39Z")\
**Posts on this page:** 1\
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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [September 10, 2018, 1:32pm UTC](https://forum.inductiveautomation.com/t/reading-writing-multiple-serial-inputs-and-outputs-using-nmea-protocol/19600/2 "2018-09-10T13:32:46Z")

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You might find this post helpful:

> [@How to listen serial data without interruption](http://forum.inductiveautomation.com/t/how-to-listen-serial-data-without-interruption/15709/2):
>
> This is actually a rather challenging task, requiring a background thread constantly listening to the serial port. You might find inspiration in this example: [clientserial.py](https://www.automation-pros.com/ignition/clientserial.py).

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