# Arduino Car: fails to find Bluetooth HC05

**URL:** <https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392>\
**Category:** Questions about Thunkable X\
**Created:** [March 10, 2020, 6:07pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392 "2020-03-10T18:07:15Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![alanbartley](https://avatars.discourse-cdn.com/v4/letter/a/919ad9/32.png) [@alanbartley](https://community.thunkable.com/u/alanbartley)\
**Post date:** [March 10, 2020, 6:07pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/1 "2020-03-10T18:07:16Z")

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Hi,  
I am designing an App that controls an Arduino car. I have designed the same App on App Inventor and it works easily. In App Inventor I scan for Bluetooth devices and a list of devices is displayed and I can select from this list.

The problem with thunkable is that it never finds the HC05. and doesnt display the list of items available.  
[https://x.thunkable.com/copy/6e4b6047fbe35be27e486c9c5ed7c74e](https://x.thunkable.com/copy/6e4b6047fbe35be27e486c9c5ed7c74e)

If anybody has designed a similar app they can share with me, or can offer advice I would greatly appreciate it.

 ![Arduino App Inventor](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/a/c/ac84bb1ce0170a6182f252bbacf482dbe1f730f9.png)

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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:** [April 10, 2020, 10:37am UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/2 "2020-04-10T10:37:42Z")

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> [@alanbartley](#):
>
> and doesnt display the list of items available.

Hey @alanbartley were you ever able to make any progress with this?

Are you live testing or installing your app?

Android or iOS?

Do you have the location sensor enabled too?

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**Author:** ![alanbart](https://avatars.discourse-cdn.com/v4/letter/a/e9c0ed/32.png) [@alanbart](https://community.thunkable.com/u/alanbart)\
**Post date:** [June 16, 2020, 2:18pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/3 "2020-06-16T14:18:07Z")

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Hi Domhnall,  
Thank you for following up on this. After a break from this project I am back working on it again.

When I scan, no names appear on the list viewer (With the App Inventor all devices appear no problem)  
I have the App installed on my phone, and it is an android.  
The location sensor has been enabled also.

When I search for IDs they do appear, however when I search for names it does not work.  
As I said it works perfectly with App Inventor, but I would really like to get this project working on Thinkable X.

Thank you, If you can help me it would be great.  
Alan

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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:** [June 16, 2020, 2:21pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/4 "2020-06-16T14:21:58Z")

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No problem at all - I’ve been meaning to do some in-depth BLE tutorials for a while now so happy to help out where ever I can.

> [@alanbart](#):
>
> however when I search for names it does not work.

Sounds like you’re doing everything else right - have you tried displaying the response in a Label just to see if anything it coming back?

If it’s not an issue with the response type, it might be platform specific? Are you testing on Android and/or iOS?

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**Author:** ![alanbart](https://avatars.discourse-cdn.com/v4/letter/a/e9c0ed/32.png) [@alanbart](https://community.thunkable.com/u/alanbart)\
**Post date:** [June 16, 2020, 2:35pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/5 "2020-06-16T14:35:24Z")

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I am testing it on an Android.

I will experiment displaying the response in a label, if something works I will post it here.

It would be great to see some tutorials on the BLE, and get Thunkable X working with Arduino.

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**Author:** ![Sofia](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/sofia/32/50160_2.png) [@Sofia](https://community.thunkable.com/u/Sofia)\
**Post date:** [June 16, 2020, 4:43pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/6 "2020-06-16T16:43:10Z")

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Hi Alan,

I’ve been experimenting with a Bluetooth App using Flora from Adafruit. Like you, sometimes the name of all the devices doesn’t appear, luckily the Bluefruit device I’m using comes with a factory name and I’m able to find it. I think it has something to do with how the Bluetooth is set up, most of the Bluetooth signals I’m finding don’t have a name.

In Thunkable this appears as a blank space if you’re using a list viewer.

 ![IMG_38B963F6AE13-1](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/9/4/9459b80825f33d0900ca3b35e1bc2d517d9abbd2.jpeg)

I can’t recall if the HC05 modules worked like that too, maybe checking if the name you’re giving it in your Arduino code, to see if it’s visible?

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**Author:** ![loulou.marroccows849](https://avatars.discourse-cdn.com/v4/letter/l/9fc348/32.png) [@loulou.marroccows849](https://community.thunkable.com/u/loulou.marroccows849)\
**Post date:** [October 13, 2021, 9:47am UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/7 "2021-10-13T09:47:06Z")

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Hi,  
I see this topic was from more than a year ago, but I’m facing a similar issue.

i’m using a HC05 module to be able to interact with my phone. I previously used MIT app inventor and I was able to find my device. Now I switched to Thunkable and I’m not able to find my device anymore.

When I use the Arduino car example of this topic, I can’t see my device (the device name or the device id do not appear in the list viewer). Also, I don’t see my device in the LightBlue app. However, In my bluetoth phone parameter, I can see my HC-05 module and I can connect to it.

I’m on Android, I tried on the live simulator but also by installing the app directly on my phone.

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**Author:** ![ayebfadias](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@ayebfadias](https://community.thunkable.com/u/ayebfadias)\
**Post date:** [October 15, 2022, 12:58pm UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/8 "2022-10-15T12:58:29Z")

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I have the same issue with app inventor please help 🥺

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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, 11:25am UTC](https://community.thunkable.com/t/arduino-car-fails-to-find-bluetooth-hc05/508392/9 "2024-11-08T11:25:41Z")

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