# serialnumber radio multiple microbits

**URL:** <https://forum.makecode.com/t/serialnumber-radio-multiple-microbits/11462>\
**Category:** Educators' Lounge\
**Created:** [December 22, 2021, 6:00pm UTC](https://forum.makecode.com/t/serialnumber-radio-multiple-microbits/11462 "2021-12-22T18:00:30Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![patrick](https://avatars.discourse-cdn.com/v4/letter/p/b2d939/32.png) [@patrick](https://forum.makecode.com/u/patrick)\
**Post date:** [December 22, 2021, 6:00pm UTC](https://forum.makecode.com/t/serialnumber-radio-multiple-microbits/11462/1 "2021-12-22T18:00:30Z")

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hi, i cannot find a way to add multiple microbits with there serialnumber into a list. I want to make a game with multiple players like rock, paper, scissors where i need to identify from witch microbit the message comes. Can someone help me?  
Kind regards  
P.