# Arduino communication **URL:** \ **Category:** Artemis\ **Created:** [November 29, 2023, 9:33am UTC](https://community.sparkfun.com/t/arduino-communication/46565 "2023-11-29T09:33:32Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![MasterJonesey](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@MasterJonesey](https://community.sparkfun.com/u/MasterJonesey)\ **Post date:** [November 29, 2023, 9:33am UTC](https://community.sparkfun.com/t/arduino-communication/46565/1 "2023-11-29T09:33:32Z")
Hi! How can i communicate with 2 arduino’s? I have to press a button on one arduino and then the led has to turn on on another arduino. Could you please help me? ---
**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:** [November 29, 2023, 11:02am UTC](https://community.sparkfun.com/t/arduino-communication/46565/2 "2023-11-29T11:02:57Z")
How are your boards connected to one another? Serial might be the easiest way. Try using software serial on both boards and cross connect rx and tx. ---
**Author:** ![MasterJonesey](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@MasterJonesey](https://community.sparkfun.com/u/MasterJonesey)\ **Post date:** [November 30, 2023, 7:35am UTC](https://community.sparkfun.com/t/arduino-communication/46565/3 "2023-11-30T07:35:01Z")
Yes, they are connected serial. All the wiring is right but i don’t really understand the code, could you help me with this please? ---
**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:** [November 30, 2023, 10:11am UTC](https://community.sparkfun.com/t/arduino-communication/46565/4 "2023-11-30T10:11:05Z")
[https://microcontrollerslab.com/serial- … no-boards/](https://microcontrollerslab.com/serial-uart-communication-between-two-arduino-boards/)