# Help finding UUID for BLE **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [June 29, 2019, 11:07pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922 "2019-06-29T23:07:14Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![jw01563daqgz](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jw01563daqgz](https://community.thunkable.com/u/jw01563daqgz)\ **Post date:** [June 29, 2019, 11:07pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/1 "2019-06-29T23:07:14Z")
Has anyone used the BLE with an HC-10. Ive got the BLE working with a separate app, but I can’t seem to figure out how to find the characteristic UUID to plug into thunkable. ---
**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\ **Post date:** [June 29, 2019, 11:23pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/2 "2019-06-29T23:23:37Z")
Hey @jw01563daqgz What sort of values are you getting from your `Scan` function? ---
**Author:** ![jw01563daqgz](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jw01563daqgz](https://community.thunkable.com/u/jw01563daqgz)\ **Post date:** [June 29, 2019, 11:51pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/3 "2019-06-29T23:51:15Z")
Im getting the device Names and id’s no problem. Im able to connect to the HM-10 with the connect by name function. its just when I try to transmit data that I’m having issues. Should I have to scan before I can send data ? ---
**Author:** ![devpietro](https://avatars.discourse-cdn.com/v4/letter/d/41988e/32.png) [@devpietro](https://community.thunkable.com/u/devpietro)\ **Post date:** [July 7, 2019, 9:48pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/4 "2019-07-07T21:48:34Z")
If you’re using android you just need to use the characters UUID: 0000FFE1-0000-1000-8000-00805F9B34FB (obviusly you must be connected to the device to transmit data) Using iOS, I don’t know why, I’ve got problems too ---
**Author:** ![wei](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/wei/32/26160_2.png) [@wei](https://community.thunkable.com/u/wei)\ **Post date:** [July 12, 2019, 12:17am UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/5 "2019-07-12T00:17:04Z")
There is an app in the Google play store / Apple store which might be able to help you - > > > With this APP, you can more efficiently communicate with the DSD TECH Bluetooth module, which saves you a lot of time: > The current list of compatible Bluetooth devices is as follows: > 1, DSD TECH SH-HC-08 Bluetooth module > 2, DSD TECH SH-M08 Bluetooth module > 3, DSD TECH HM-10 Bluetooth module > 4, DSD TECH SH-11 Bluetooth 5.0 modul... You can connect your device with the app and you can find the **_characteristic_** UUID from the connected device info. Best, Wei ---
**Author:** ![mbnarciap9xb](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mbnarciap9xb](https://community.thunkable.com/u/mbnarciap9xb)\ **Post date:** [March 15, 2021, 6:38pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/6 "2021-03-15T18:38:04Z")
All i’m able to see for iOS are the characteristics of UUID ‘FFE1’ but still can’t send data using 0000FFE1-0000-1000-8000-00805F9B34FB or just FFE1. Again, i am able to connect just not send data. Was there a solution for this yet? Android works fine just not IOS. Also had no problems sending data with DSD TECH Bluetooth App, LightBlue, and BLE scanner to my HM-10 with IOS. ---
**Author:** ![Dario\_Cappello](https://avatars.discourse-cdn.com/v4/letter/d/c2a13f/32.png) [@Dario\_Cappello](https://community.thunkable.com/u/Dario_Cappello)\ **Post date:** [July 25, 2021, 3:58pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/7 "2021-07-25T15:58:28Z")
I have the same problem. Have you found a solution? ---
**Author:** ![mbnarciap9xb](https://avatars.discourse-cdn.com/v4/letter/m/eb8c5e/32.png) [@mbnarciap9xb](https://community.thunkable.com/u/mbnarciap9xb)\ **Post date:** [July 25, 2021, 4:24pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/8 "2021-07-25T16:24:26Z")
This is a well know issue I spent weeks trying to figure it out. No solution as far as I know. My advice- If you have a mac you are better off using Xcode. If you don’t have a mac try a different module I read ESP32 might work. Good luck! ---
**Author:** ![Dario\_Cappello](https://avatars.discourse-cdn.com/v4/letter/d/c2a13f/32.png) [@Dario\_Cappello](https://community.thunkable.com/u/Dario_Cappello)\ **Post date:** [July 25, 2021, 4:42pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/9 "2021-07-25T16:42:48Z")
My app worked fine on both android and IOS until 4, 5 months ago. then I no longer tested on IOS but I only worked on android for testing. A month ago I retested on IOS and it no longer worked. I think THUNKABLE has changed something. On the connection side, I have not changed anything neither on the app nor on the arduino. ---
**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, 12:12pm UTC](https://community.thunkable.com/t/help-finding-uuid-for-ble/125922/10 "2024-11-08T12:12:16Z")