# Cannot find Bluetooth, but searching on phone, found in bluetooth list

**URL:** <https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101>\
**Category:** Questions about Thunkable X\
**Tags:** arduino\
**Created:** [March 19, 2020, 7:55am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101 "2020-03-19T07:55:45Z")\
**Posts on this page:** 17\
**Page:** 1

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 19, 2020, 7:55am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/1 "2020-03-19T07:55:45Z")

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I made BLE + Thunkable as according to [https://www.instructables.com/id/ESP32-BLE-Android-App-Arduino-IDE-AWESOME/?fbclid=IwAR1iwEDTUTNJjlCGqz6c1PIRu42YK8ReIG8OG3DUXhTj8C2rBkSulkHrjfE](https://www.instructables.com/id/ESP32-BLE-Android-App-Arduino-IDE-AWESOME/?fbclid=IwAR1iwEDTUTNJjlCGqz6c1PIRu42YK8ReIG8OG3DUXhTj8C2rBkSulkHrjfE)  
By connecting to esp32 using the same code, but when trying on thunkable, Bluetooth cannot be found! [90393927\_2501812430084395\_8481071297193836544\_n|375x500](https://community.thunkable.com/uploads/short-url/yDpRGImKQuXnQT2bJb2jnmuMIpa.jpeg)  
And this one is the total code

 ![1](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/a/f/af88bad7a5a7180764c0c7575a6b82cb4f2ee38c.png) ![3](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/6/7/6776595f19e28126da7ee6c01304186acb48da13.png) I’d like to ask if the phone finds Bluetooth on the bluetooth list, but when turned on in thunkable, can’t find Bluetooth. How to fix?

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**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:** [March 19, 2020, 9:42am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/2 "2020-03-19T09:42:59Z")

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Hi @baspett2316x9,

Are you live testing or installing your app here?

Also, if you’re using an iOS device - are you using the location sensor too?

Thanks.

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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:** [March 19, 2020, 12:17pm UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/3 "2020-03-19T12:17:30Z")

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Hi @baspett2316x9, I notice in your code here that you may want to switch the green item block for the index block. “Item” blocks return the name of what was clicked on. However when working in the list you reference a name when you should reference the items list index (could be thought about as the items place in line)  
 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/a/5abb4c189ed15f81adc426e844792c99b0161991.jpeg)

You may also want to meet this block in the purple block. The green block is “out of scope” meaning you can only use it with blocks nested within the purple block it came from

 ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/9/392f6624a3cb0eca7f7a41a37e7fb9fae0c57336.jpeg)

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**Author:** ![jackmanjlskmv1xe](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jackmanjlskmv1xe/32/63072_2.png) [@jackmanjlskmv1xe](https://community.thunkable.com/u/jackmanjlskmv1xe)\
**Post date:** [March 19, 2020, 5:00pm UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/4 "2020-03-19T17:00:13Z")

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baspett…I think this is exactly the same issue that I’m having.

I created a very simple test to just display the Device Names but couldn’t get Thx to work. I have similar working with AI2 and Android Studio (java based).

Please look at posts titled:

1. BLE Scan…no devices found
2. ThX vs AI2 and scan results.

I’ve spent days trying to resolve this issue but have all but decided to go back to AI2. With AI2 all my code and hardware are working as expected.

Please contact me via this thread or [jackmanjls@gmail.com](mailto:jackmanjls@gmail.com). Maybe working together we can resolve.

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 20, 2020, 3:09am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/5 "2020-03-20T03:09:46Z")

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Now that I try use android And found this problem

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 20, 2020, 3:12am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/7 "2020-03-20T03:12:13Z")

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Thank you very much. I’ll contact you. But i want to try it with thunkable but now i just started to study it

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 20, 2020, 4:42am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/8 "2020-03-20T04:42:30Z")

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Bluetooth name of the device is now found. But unable to press connect

 ![90314288_514964129445410_1504282896372858880_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/4/4/4452213030e51e3de3a47b659f5f178053731c8b.jpeg)

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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:** [March 20, 2020, 11:14am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/9 "2020-03-20T11:14:56Z")

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Can you post a picture of your block flow when a user presses a list item?

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**Author:** ![jackmanjlskmv1xe](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jackmanjlskmv1xe/32/63072_2.png) [@jackmanjlskmv1xe](https://community.thunkable.com/u/jackmanjlskmv1xe)\
**Post date:** [March 20, 2020, 12:41pm UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/10 "2020-03-20T12:41:49Z")

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baspett…There’s an android app from the play store called Light Blue. Can you download the app and run? I would like for you to verify the number of devices that LightBlue lists. My best guess is that it will list more items than ThX picks up. If you refer to the pic notice where your items are listed in the listview. Notice that your device names are in listview location 3 and 4 when they should be in items 1 and 2. IMO this is incorrect. In additon to the above issue why are there so many lines for the listview. Normally listview should only list the number of items available not fill the screen with blank data.

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**Author:** ![jackmanjlskmv1xe](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jackmanjlskmv1xe/32/63072_2.png) [@jackmanjlskmv1xe](https://community.thunkable.com/u/jackmanjlskmv1xe)\
**Post date:** [March 20, 2020, 12:43pm UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/11 "2020-03-20T12:43:56Z")

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jared…please read my response to baspett post on this subject.

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 21, 2020, 9:56am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/12 "2020-03-21T09:56:43Z")

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Initially, when opening the app, will click the connect button to search for Bluetooth.

 ![90442307_655585431936348_3448649840068657152_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/7/c/7cb4bb74346e87869a97a4a223322333ea9ee87a.jpeg)  
Step 2 will select the Bluetooth you want to connect. ![90046394_634120084092183_7681901368012963840_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/a/f/af79f923cd3d8641999870747e65786b69c2bf79.jpeg) When the connect is successful, you can press the button LED to send value to esp32 to turn the LED off as thunkable.But this process was still unsuccessful Currently searching for Bluetooth but still can’t press connect! ![90317663_2505298443066436_408082692677042176_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/f/3f4bfdad6de77e453157e2d6e10b8305d5b28829.jpeg)

This is the total code at this time.

 ![11](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/4/2489fe898d2fb3df6439a0fb8e445b082f0b7b9d.png) ![12](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/4/3/4330429209fcb6cb473a762ba18495af51470116.png) [111.txt](https://community.thunkable.com/uploads/short-url/8BBlikm9q4KcAAnl8ttsxxKKIxd.txt) (4.1 KB)

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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:** [March 21, 2020, 9:59am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/13 "2020-03-21T09:59:59Z")

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> [@baspett2316x9](#):
>
> button

Can you try this to see items.

> [@Bluetooth Function for Thunkable X](http://community.thunkable.com/t/bluetooth-function-for-thunkable-x/36786/16):
>
> @jackmanjlskmv1xe, if you are not able to list device names still, Please see here. I was able to list device names. This was less than 1 hr of testing and trying different blocks. no tutorial used. I first started by listing the names into a label. then by adding that list to a variable or an error to that label should one occur. next i loop all items in the name list to make sure there is actual text there, apparently some devices transmit a signal without including a name. if name is null, …

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 21, 2020, 10:05am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/14 "2020-03-21T10:05:27Z")

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Now in Light Blue you can search for the Bluetooth you want to connect to.

 ![90441320_674912189979069_5342089367965925376_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/9/8/98372e9cbc46727641e4994f1b9082d7b250c1f6.jpeg) ![89959268_1319851848200787_2922292458253451264_n](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/f/cf289effb5f962f64c433ddb63236d1a849ad83a.jpeg) What should I do now in thunkable Bluetooth search but can’t connect to Bluetooth

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 21, 2020, 10:15am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/15 "2020-03-21T10:15:13Z")

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I will try to do as this. It is similar to my job, but I am very new to this lesson.

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**Author:** ![baspett2316x9](https://avatars.discourse-cdn.com/v4/letter/b/f08c70/32.png) [@baspett2316x9](https://community.thunkable.com/u/baspett2316x9)\
**Post date:** [March 23, 2020, 6:30am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/16 "2020-03-23T06:30:59Z")

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Please help me Now I don’t know where to fix the code. Please advise me.

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**Author:** ![Ruszi](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@Ruszi](https://community.thunkable.com/u/Ruszi)\
**Post date:** [February 6, 2023, 10:37am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/17 "2023-02-06T10:37:58Z")

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Hi All, back after 5-6 yrs to continue developing my app. Everything changed, so I must start right from the beginning. Anyway, please help me with the following issue!  
1st step is to find my Bluetooth device. No problem with creating a device list, but:  
My phone (SGS21) can find the device, its name is “AC-110A”. BTW this is a coating thickness meter.  
In a live test on mobile, I cannot see the exact device although the phone’s list contains it, and can pair to it. Please take a look at the screenshots.  
Thank you in advance!

 ![20230206_112307](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/8/7/87c80b24b6f5e8142acfd207a532da170b170cfc.jpeg)  
 ![20230206_112348](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/7/0/707982d51a83a9c100f9cd63075f0f35c57eb510.jpeg)  
 ![Screenshot_20230206_112256_Settings](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/8/4/84efb5c4555e2173aa4b3c9d4329980147dff2b5.jpeg)  
 ![Screenshot_20230206_113225_Thunkable](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/8/e/8e441a2d4097384aa211d12b5f58456283f8ea83.jpeg)

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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, 11:39am UTC](https://community.thunkable.com/t/cannot-find-bluetooth-but-searching-on-phone-found-in-bluetooth-list/523101/18 "2024-11-08T11:39:41Z")

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