Windows 10 Bluetooth Serial Port Profile
Windows 10 Bluetooth Serial Portable Speakers
Windows 10 Bluetooth Serial Ports

Note For information about Bluetooth support prior to Windows 10, see Bluetooth Support in Previous Windows Versions. Which Bluetooth versions does Windows 10 support? Windows 10 for desktop editions (Home, Pro, Enterprise, and Education) and Windows 10 Mobile support the following Bluetooth versions: Version 1.1; Version 2.0; Version 2.0 with EDR. To install serial ports and COM ports using these system-supplied components, do the following: Provide an INF file that specifies the Ports device setup class and the Serial function driver as the service for the port. To configure a serial port as COM port, comply with the requirements that are defined in Configuration of COM Ports. Here's how to add an incoming Bluetooth COM port for Windows. Due to inactivity, your session will end in approximately 2 minutes.

You can pair all kinds of Bluetooth devices with your PC—including keyboards, mice, phones, speakers, and a whole lot more. To do this, your PC will need to have Bluetooth. Some PCs, such as laptops and tablets, have Bluetooth built in. If your PC doesn’t, you can plug a USB Bluetooth adapter into the USB port on your PC to get it.

Windows 10Windows 8.1Windows 7

PC (Windows 10) Bluetooth connect to HC-06, loopback to PC via USB http://android-er.blogspot.com/2015/10/connect-windows-10-to-hc-06-bluetooth.html.

Before you start, make sure that your Windows 10 PC supports Bluetooth. For more info on how to check, see Fix Bluetooth problems in Windows 10. If you need help adding a device without Bluetooth capabilities, see Add a device to a Windows 10 PC.

Turn on Bluetooth

After you've checked that your Windows 10 PC supports Bluetooth, you'll need to turn it on. Here's how:

In Settings

Select Start > Settings > Devices > Bluetooth & other devices, and turn on Bluetooth.

In action center

Action center can be found next to time and date on your taskbar. On the taskbar, select action center ( or ), then select Bluetooth to turn it on. If it's turned off, it might appear as Not connected.

If you don't see Bluetooth in your action center, here's how you can change it:

Expand quick actions. On the taskbar, select action center ( or ) > Expand. Bluetooth should appear here. It will appear as Bluetooth or Not connected.
Add Bluetooth to action center. Select Start > Settings > System > Notifications & actions > Quick actions. Go to Add or remove quick actions and turn on Bluetooth.

Note: For more info about how to change the apps and settings that appear in action center, see Change notification and action settings in Windows 10.

To pair a Bluetooth headset, speaker, or other audio device

Turn on your Bluetooth audio device and make it discoverable. The way you make it discoverable depends on the device. Check the device or visit the manufacturer's website to learn how.
On your PC, select Start > Settings > Devices > Bluetooth & other devices > Add Bluetooth or other device > Bluetooth. Choose the device and follow additional instructions if they appear, then select Done.
Your Bluetooth device and PC will usually automatically connect anytime the two devices are in range of each other with Bluetooth turned on.

Note: Not seeing your Bluetooth audio device? Learn how to fix connections to Bluetooth audio devices and wireless displays.

To pair a Bluetooth keyboard, mouse, or other device

Turn on your Bluetooth keyboard, mouse, or other device and make it discoverable. The way you make it discoverable depends on the device. Check the device or visit the manufactur's website to learn how.
On your PC, select Start > Settings > Devices > Bluetooth & other devices > Add Bluetooth or other device > Bluetooth. Choose the device and follow additional instructions if they appear, then select Done.

To pair a Bluetooth printer or scanner

Turn on your Bluetooth printer or scanner and make it discoverable. The way you make it discoverable depends on the device. Check the device or visit the manufacturer's website to learn how.
Select Start > Settings > Devices > Printers & scanners > Add a printer or scanner. Wait for it to find nearby printers, then choose the one you want to use and select Add device.

If you’re having installation issues with your printer or scanner, see either Fix printer problems or Install and use a scanner in Windows 10.

To pair a Bluetooth device using Swift Pair

Swift Pair in Windows 10 lets you quickly pair a supported Bluetooth device with your PC. If the Bluetooth device supports Swift Pair, you’ll receive a notification when it's nearby and you put it into pairing mode to make it discoverable.

Turn on a Bluetooth device that supports Swift Pair and make it discoverable. The way you make it discoverable depends on the device. Check the device or visit the manufacturer’s website to learn more.
If this is your first time using Swift Pair, select Yes when asked if you want to get notifications and use Swift Pair.
When a notification appears that a new Bluetooth device was found, select Connect.
After it’s connected, select Close.

Before you start, make sure that your Windows 8 PC supports Bluetooth.

Turn on your Bluetooth device and make it discoverable.
The way you make it discoverable depends on the device. Check the device or visit the manufacturer's website to learn how.
Select Start > type Bluetooth > select Bluetooth settings from the list.
Turn on Bluetooth > select the device > Pair.
Follow any instructions if they appear. Otherwise, you're done and connected.

Your Bluetooth device and PC will usually automatically connect anytime the two devices are in range of each other with Bluetooth turned on.

Before you start, make sure that your Windows 7 PC supports Bluetooth.

Turn on your Bluetooth device and make it discoverable.
The way you make it discoverable depends on the device. Check the device or visit the manufacturer's website to learn how.Turn on your Bluetooth device and make it discoverable. The way you make it discoverable depends on the device. Check the device or visit the manufacturer's website to learn how.
Select Start > Devices and Printers.
Select Add a device > select the device > Next.
Follow any other instructions that might appear. Otherwise, you're done and connected.

Your Bluetooth device and PC will usually automatically connect anytime the two devices are in range of each other with Bluetooth turned on.

When you have an old Windows 10 machine, you can reuse it as an IOT gateway.

Given that your Windows 10 machine has working Bluetooth, you can connect it to an ESP32 development board.

Windows 10 Bluetooth Serial Port Profile

In case you need a reference to connect to an ESP32 development board via Bluetooth on Windows 10, here are the steps to do so.

Setting up your ESP32 development board to accept Bluetooth connections

Before your Windows machine can discover ESP32 Bluetooth, you need to get ESP32 to turn on Bluetooth. In order to do so, upload the following Arduino Sketch to your ESP32 development board:

As I had mentioned in the guide on how to get your ESP32 development board to communicate with another device over Bluetooth Serial, this Arduino Sketch will echo back whatever message that it receives from the Bluetooth connection.

After you had uploaded the Arduino Sketch onto your ESP development board, place it near to your Windows machine