# Pleading for assistance with ESC/POS commands via BLE

**URL:** <https://community.thunkable.com/t/pleading-for-assistance-with-esc-pos-commands-via-ble/3384182>\
**Category:** BLE / BlueTooth\
**Created:** [December 2, 2024, 7:07pm UTC](https://community.thunkable.com/t/pleading-for-assistance-with-esc-pos-commands-via-ble/3384182 "2024-12-02T19:07:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![steve\_synopsis](https://avatars.discourse-cdn.com/v4/letter/s/48db29/32.png) [@steve\_synopsis](https://community.thunkable.com/u/steve_synopsis)\
**Post date:** [December 2, 2024, 7:07pm UTC](https://community.thunkable.com/t/pleading-for-assistance-with-esc-pos-commands-via-ble/3384182/1 "2024-12-02T19:07:19Z")

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I have been working on a project for a while which utilises a ESC/POS compatible BLE printer. I can get text printed fine, but cannot get any hex commands to change font, bold, underline, LF, etc. to work.

The last time I raised the topic [here](https://community.thunkable.com/t/how-to-send-esc-pos-commands-to-a-printer/2764423), there was a suggestion made but it has not worked.

For LF, I have tried 0A and 0x0A but neither works. I am assuming that there must be someone at Thunkable who knows how the BLE hex strings should be formatted and sent to the printer.

I really would appreciate some assistance as I believe that quite a few users may benefit from the ability to write apps that use printers as part of the functionality.

Thanks  
Steve

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**Author:** ![steve\_synopsis](https://avatars.discourse-cdn.com/v4/letter/s/48db29/32.png) [@steve\_synopsis](https://community.thunkable.com/u/steve_synopsis)\
**Post date:** [December 5, 2024, 6:50pm UTC](https://community.thunkable.com/t/pleading-for-assistance-with-esc-pos-commands-via-ble/3384182/2 "2024-12-05T18:50:34Z")

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Noone??

@ioannis @matt_conroy

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**Author:** ![matt\_conroy](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/matt_conroy/32/150843_2.png) [@matt\_conroy](https://community.thunkable.com/u/matt_conroy)\
**Post date:** [December 5, 2024, 7:45pm UTC](https://community.thunkable.com/t/pleading-for-assistance-with-esc-pos-commands-via-ble/3384182/3 "2024-12-05T19:45:47Z")

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@steve_synopsis I’m really sorry, this is just not an area where I am that advanced. What I know is that the hexadecimal command goes in as a string. Formatting it though, I am not sure.

 ![Screenshot 2024-12-05 at 2.42.25 PM](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/f/3f476aeaae5fb5083bf6112047a3a197ac28e020.png)