# How to Connect Bluetooth LE devices to a Windows Host

To connect DynaMAX or eDynamo to a host with Windows 8.1 or higher and Bluetooth 4.0 hardware that supports Bluetooth LE, follow these steps:

* If you are using an external Bluetooth adapter, install any required drivers and connect it to the host.
* On the host, install and configure the software you intend to use with DynaMAX or eDynamo:
  1. Make sure the host software is configured to look for the device on the proper connection.
  2. Make sure the host software knows which device(s) it should interface with.
  3. Make sure the host software is configured to properly interpret incoming data from the device. This depends on whether the device is configured to transmit data in GATT format or streaming format emulating a keyboard.
* Make sure the DynaMAX’s batteries are installed and have adequate charge. If using eDynamo, make sure the device has an adequate charge.
* Test the batteries by powering on the DynaMAX or eDynamo device. Provided the device is not already paired, the Bluetooth Status LED will flash blue every two seconds for up to 60 seconds until pairing is complete. If the Bluetooth Status LED is solid blue, the device is already paired with a host. Unpair from the host it is already paired with before continuing.
* Enter app mode, scroll down to Apps by name , and launch the Windows PC Settings app.

<figure><img src="/files/7p5I6cYTQy4SBLKIzuKW" alt=""><figcaption></figcaption></figure>

* In the left side navigator, select PC and devices > Bluetooth
* Make sure Bluetooth is turned on and close the PC and devices all
* Launch the Windows Manage Bluetooth Devices app by following these steps:
  * Enter desktop mode by swiping in from the left side of the touchscreen.
  * Touch the Bluetooth icon in the system tray and select Add a Bluetooth Devices (see Error! Reference source not found.).

<figure><img src="/files/aAbxuJyF9XbjmflNybl2" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/0J8luGLUjGrmrYHPPife" alt=""><figcaption></figcaption></figure>

* Locate the serial number on the label on the bottom of the device. Note the final four digits.
* Read through the list of pairable devices and locate the device called DynaMAX-nnnn or eDynamo-nnnn, where nnnn is the last four digits of the device’s serial number (if the device does not show in the list, power it off then power it back on). Below the device name you should see the Ready to pair.
* Select the device and press Pair button. If the device is configured to run in KB mode. Windows will prompt you Enter the passcode for your keyboard.&#x20;

<figure><img src="/files/N6IIlCkwEneLKBqPHZkf" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/RIRWKFsxgcPoU0AP27At" alt=""><figcaption></figcaption></figure>

* &#x20;
* Enter default passcode 000000 (or the device’s actual password if it has been configured differently), then press the Next button. Windows will return you to the Manage Bluetooth devices page. After a short period of time, you will see the text Connected below the device you are pairing with.
* After a few seconds, the device will disconnect, which is normal power-saving behavior.

&#x20;![](/files/aSARm9DxakbBtpG5dXVz)

* Use the host software to test swiping a card. If you do not yet have host software and the device is configured to run in KB mode, open any text editor and swipe a card. The card contents should appear in the text editor.
* The device consumes very little power when not transmitting card data, so it is not necessary to power off the device to conserve power. If the device appears as Not Connected in the Windows list of Bluetooth devices, swiping a card should cause the device to reconnect briefly, transmit the card data, then disconnect.
* Remember to change the default password. See the DynaMAX Programmer’s Reference documents for details.

&#x20;To unpair from the device:

* Locate the device in the Manage Bluetooth devices window
* Press the Remove device button.


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