# Bluetooth unable to transfer data

**URL:** <https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569>\
**Category:** BLE / BlueTooth\
**Created:** [September 15, 2023, 6:19am UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569 "2023-09-15T06:19:25Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![stupikk](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/stupikk/32/155692_2.png) [@stupikk](https://community.thunkable.com/u/stupikk)\
**Post date:** [September 15, 2023, 6:19am UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/1 "2023-09-15T06:19:25Z")

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I’m using an arduino and HC-05 module that can connect to my MacBook. However, when I try to use this code to connect to the arduino:

 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/c/ccb09c5c7a9374956df33a2159c33cdf36983f05.png)  
Label15 (As shown) returns |Operation was cancelled  
About me (As shown) returns (random number from 1 to 10k)No device is connected.  
However, if I disconnect the module, Label15 says that the device (censored Bluetooth device ID) has been disconnected. Can I at least know if there is a fix for this?

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**Author:** ![stupikk](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/stupikk/32/155692_2.png) [@stupikk](https://community.thunkable.com/u/stupikk)\
**Post date:** [September 21, 2023, 6:59am UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/2 "2023-09-21T06:59:19Z")

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Anyone? It’s been a while.

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**Author:** ![jared](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jared/32/138473_2.png) [@jared](https://community.thunkable.com/u/jared)\
**Post date:** [September 21, 2023, 1:57pm UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/3 "2023-09-21T13:57:39Z")

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are you able to connect to your device using the LightBlue app?

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**Author:** ![stupikk](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/stupikk/32/155692_2.png) [@stupikk](https://community.thunkable.com/u/stupikk)\
**Post date:** [September 22, 2023, 1:22pm UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/4 "2023-09-22T13:22:17Z")

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Yup. I tested it on Mac, though.

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**Author:** ![jared](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jared/32/138473_2.png) [@jared](https://community.thunkable.com/u/jared)\
**Post date:** [September 23, 2023, 12:45am UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/5 "2023-09-23T00:45:20Z")

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Can you connect directly using the items uuid?

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**Author:** ![stupikk](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/stupikk/32/155692_2.png) [@stupikk](https://community.thunkable.com/u/stupikk)\
**Post date:** [September 24, 2023, 8:34am UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/6 "2023-09-24T08:34:38Z")

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Yep. Sorry for the late reply

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [November 8, 2024, 1:33pm UTC](https://community.thunkable.com/t/bluetooth-unable-to-transfer-data/2596569/7 "2024-11-08T13:33:25Z")

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