# No serial library Processing for smartphone. Help

**URL:** <https://discourse.processing.org/t/no-serial-library-processing-for-smartphone-help/29870>\
**Category:** Processing for Android\
**Created:** [May 5, 2021, 9:34am UTC](https://discourse.processing.org/t/no-serial-library-processing-for-smartphone-help/29870 "2021-05-05T09:34:04Z")\
**Posts on this page:** 1\
**Showing post:** 215

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**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [May 2, 2023, 4:43pm UTC](https://discourse.processing.org/t/no-serial-library-processing-for-smartphone-help/29870/215 "2023-05-02T16:43:32Z")

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Hello @GWAK ,

Related topic:

> [@APDE USB / OTG communication](https://discourse.processing.org/t/apde-usb-otg-communication/30114):
>
> Last update 2021-05-20T00:00:00Z (UTC) this post will be constantly updated, so someone will be interested, but do not want to scroll through the posts further, they will see and know everything, show what has already been done and where we are now stuck Conditions and purpose: to write a working program on a smartphone using APDE of any version, without touching a personal computer. Connect any smartphone or tablet via OTG cable via serial port to any microcontroller via their RX TX pins. Pl…

`:)`

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