# Bluetooth low energy

**URL:** <https://community.thunkable.com/t/bluetooth-low-energy/1833463>\
**Category:** Questions about Thunkable X\
**Created:** [April 15, 2022, 12:18am UTC](https://community.thunkable.com/t/bluetooth-low-energy/1833463 "2022-04-15T00:18:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jp019178q4xzw](https://avatars.discourse-cdn.com/v4/letter/j/48db29/32.png) [@jp019178q4xzw](https://community.thunkable.com/u/jp019178q4xzw)\
**Post date:** [April 15, 2022, 12:18am UTC](https://community.thunkable.com/t/bluetooth-low-energy/1833463/1 "2022-04-15T00:18:09Z")

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Hello, I have a question, it is possible to pass saved data from one application to another with the Bluetooth low energy component, if so, could someone show me an example of how to do it.

thanks greetings.

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**Author:** ![muneer](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/muneer/32/75210_2.png) [@muneer](https://community.thunkable.com/u/muneer)\
**Post date:** [April 17, 2022, 11:19am UTC](https://community.thunkable.com/t/bluetooth-low-energy/1833463/2 "2022-04-17T11:19:24Z")

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The idea is clever to transfer data but is a challenging one.

I investigated the idea and from my quick findings I can say the following:

- In principle, you can make something like a **chat app** connecting two devices using `Bluetooth` but you need both devices to have the capability to read and write.
- Thunkable uses `BLE` instead of the standard `Bluetooth` and therefore only connects as a client (receiver of information).
- There is currently no option in Thunkable to develop a `BLE` server which will accept connection request from other devices and maintain the connection and provide services such as sending information.
- Thunkable `BLE scan` only provides device `names` and `IDs` which is not enough to establish connections with other devices because BLE structure requires that each device having at least a `service` and each `service` having at least a `characteristic` and `characteristic` could have at least a `descriptor`. Connection is made using the `characteristic UUID` which is not provided using Thunkable blocks.

One way to overcome this situation is to use `MIT App Inventor` to develop the `Bluetooth server app` and use Thunkable to develop the `Bluetooth client app` so you can establish Bluetooth to Bluetooth communication without using external devices.

Hope this is clear

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**Author:** ![system](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/f/0f59f292712368bce16ff80133ae10de8a6f27e8.png) [@system](https://community.thunkable.com/u/system)\
**Post date:** [July 16, 2022, 11:19am UTC](https://community.thunkable.com/t/bluetooth-low-energy/1833463/3 "2022-07-16T11:19:34Z")

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