# Arduino Uno R4 Wifi and Software Serial

**URL:** <https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275>\
**Category:** General Guidance\
**Created:** [May 5, 2025, 3:49pm UTC](https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275 "2025-05-05T15:49:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ItsArduinoBoy](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/itsarduinoboy/32/715978_2.png) [@ItsArduinoBoy](https://forum.arduino.cc/u/ItsArduinoBoy)\
**Post date:** [May 5, 2025, 3:49pm UTC](https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275/1 "2025-05-05T15:49:01Z")

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I want to know that is it possible to use Software Serial in Arduino UNO R4 Wifi as it doesnt have AVR actually trying to connect DFRobot Gr10 30 gesture sensor with it in UART mode

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**Author:** ![van\_der\_decken](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/van_der_decken/32/1006976_2.png) [@van\_der\_decken](https://forum.arduino.cc/u/van_der_decken)\
**Post date:** [May 5, 2025, 3:58pm UTC](https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275/2 "2025-05-05T15:58:07Z")

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The R4 core includes a SoftwareSerial library.

But using the hardware Serial1 object first is always the go to option.

And the rest of that run on sentence makes no sense whatsoever to me.

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**Author:** ![UKHeliBob](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/ukhelibob/32/215663_2.png) [@UKHeliBob](https://forum.arduino.cc/u/UKHeliBob)\
**Post date:** [May 5, 2025, 6:24pm UTC](https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275/3 "2025-05-05T18:24:47Z")

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Welcome to the forum

How many serial ports do you need ?

Do you know that the R4 WiFi has a second hardware Serial named Serial1 on pins 0 and 1 ?

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**Author:** ![sterretje](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/sterretje/32/391294_2.png) [@sterretje](https://forum.arduino.cc/u/sterretje)\
**Post date:** [May 6, 2025, 4:04am UTC](https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275/4 "2025-05-06T04:04:51Z")

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> [@ItsArduinoBoy](#):
>
> I want to know that is it possible to use Software Serial in Arduino UNO R4 Wifi

Did you try it?

I agree with @van_der_decken that using a hardware serial port is the preferred way.

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [November 2, 2025, 4:05am UTC](https://forum.arduino.cc/t/arduino-uno-r4-wifi-and-software-serial/1379275/5 "2025-11-02T04:05:41Z")

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