# Problem with BLE and arduino communication **URL:** \ **Category:** Questions about Thunkable X\ **Tags:** bluetooth\ **Created:** [September 22, 2020, 8:01pm UTC](https://community.thunkable.com/t/problem-with-ble-and-arduino-communication/840667 "2020-09-22T20:01:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dickers.automotive](https://avatars.discourse-cdn.com/v4/letter/d/ccd318/32.png) [@dickers.automotive](https://community.thunkable.com/u/dickers.automotive)\ **Post date:** [September 22, 2020, 8:01pm UTC](https://community.thunkable.com/t/problem-with-ble-and-arduino-communication/840667/1 "2020-09-22T20:01:30Z")
Hello, I have some problem with BLE and arduino communication. I can send string from my phone to arduino bluetooth module (HM 10), but from arduino to phone I receive only unusual characters. Ay solution about that? ---
**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:** [September 23, 2020, 11:26am UTC](https://community.thunkable.com/t/problem-with-ble-and-arduino-communication/840667/2 "2020-09-23T11:26:14Z")
5 posts were merged into an existing topic: [Problem with bluetooth and arduino communication](https://community.thunkable.com/t/problem-with-bluetooth-and-arduino-communication/840661) ---
**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:** [September 23, 2020, 11:26am UTC](https://community.thunkable.com/t/problem-with-ble-and-arduino-communication/840667/3 "2020-09-23T11:26:15Z")