# How to go about an extension targeting both Micro:bit AND Arcade (in regards of 'screen')

**URL:** <https://forum.makecode.com/t/how-to-go-about-an-extension-targeting-both-micro-bit-and-arcade-in-regards-of-screen/1472>\
**Category:** micro:bit\
**Created:** [March 21, 2020, 11:12am UTC](https://forum.makecode.com/t/how-to-go-about-an-extension-targeting-both-micro-bit-and-arcade-in-regards-of-screen/1472 "2020-03-21T11:12:45Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![gbraad](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/gbraad/32/338_2.png) [@gbraad](https://forum.makecode.com/u/gbraad)\
**Post date:** [March 22, 2020, 4:22am UTC](https://forum.makecode.com/t/how-to-go-about-an-extension-targeting-both-micro-bit-and-arcade-in-regards-of-screen/1472/7 "2020-03-22T04:22:26Z")

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As per: [Serial port - #6 by mmoskal](https://forum.makecode.com/t/serial-port/549/6)

> Serial is currently not implemented on stm32

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