user31599: I would like to find an Arduino with built-in Bluetooth. 
I know about the HC-06, the shields and the other Bluetooth modules, but i would like to have built in Bluetooth for eliminating the risk for miscommunication on the serial port. 
The official Arduino foundation did produce an board but it's retired now. 

user42418: There is this board called Bluno
Its an Arduino UNO Based board with built in Bluetooth 4.0
Bluno - An Arduino Bluetooth 4.0 (BLE) Board



user48247: Arduino has just released a MKR WIFI 1010 board that includes an ESP32 module that allows Bluetooth connectivity. It's mainly an internet of things board but it supports:

Bluetooth low energy, BLE
Wifi



user24151: This is my currently favourite Arduino compatible board:
https://wiki.wemos.cc/products:d32:d32

ESP32 is great: offers both wi-fi, Bluetooth and BLE connection as well as lots of GPIO. 
9 GPIO's can be used as capacitive touch sensors (it has 10, but only 9 are available).

31599: <p>I would like to find an Arduino with built-in Bluetooth. 
I know about the HC-06, the shields and the other Bluetooth modules, but i would like to have built in Bluetooth for eliminating the risk for miscommunication on the serial port. </p>

<p>The official Arduino foundation did produce an board but it's retired now. </p>
 42418: <p>There is this board called Bluno
Its an Arduino UNO Based board with built in Bluetooth 4.0</p>

<p><a href="https://www.dfrobot.com/product-1044.html" rel="nofollow noreferrer">Bluno - An Arduino Bluetooth 4.0 (BLE) Board</a></p>

<p><a href="https://i.stack.imgur.com/l2Bv8.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/l2Bv8.jpg" alt="Bluno - An Arduino Bluetooth 4.0 (BLE) Board"></a></p>

<p><a href="https://i.stack.imgur.com/gi67A.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/gi67A.jpg" alt="enter image description here"></a></p>
 48247: <p>Arduino has just released a <strong>MKR WIFI 1010</strong> board that includes an <em>ESP32</em> module that allows Bluetooth connectivity. It's mainly an internet of things board but it supports:</p>

<ul>
<li>Bluetooth low energy, BLE</li>
<li>Wifi</li>
</ul>

<p><a href="https://i.stack.imgur.com/frMCO.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/frMCO.jpg" alt="Arduino MKR Wifi 1010"></a></p>
 24151: <p>This is my currently favourite Arduino compatible board:
<a href="https://wiki.wemos.cc/products:d32:d32" rel="nofollow noreferrer">https://wiki.wemos.cc/products:d32:d32</a></p>

<p><a href="https://i.stack.imgur.com/wQfk6.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wQfk6.jpg" alt="enter image description here"></a></p>

<p>ESP32 is great: offers both wi-fi, Bluetooth and BLE connection as well as lots of GPIO. 
9 GPIO's can be used as capacitive touch sensors (it has 10, but only 9 are available).</p>
