3 Replies Latest reply on Feb 16, 2017 11:10 AM by Madhu Lakshmipathy

    022001 Fiexkey pairing

    lars.harms_1424076

      Hello,

         

      i am designing a BLE Keyboard (HID device), but now i run into some problems. My design has no display and limited keyboard functionaltity (only numbers from 1-7 and some alphanumeric keys).

         

      In the sourcecode i have set a fixed pairing key to "1234". On my android device the mobile phone ask for the key and on entering the "1234" the connection is established and running. The HID-Codes from my device are send correct.

         

      If i try this under Windows 7 or 10 with an USB-Stick which is capable of running BLE, windows don't asks for a key and the connection is not sucessfull.

         

      Where can i start my debugging ?

         

      The starting point is the Bluetooth HID Keyboard example from Cypress, only added with the Fixed Pairing key and the neccesary Security options. BLE Component is 4.2.

         

      best regards

         

      Lars

        • 1. Re: 022001 Fiexkey pairing
          Madhu Lakshmipathy

          Hi,

             

          What USB Stick do you have? Are you sure of it;s pairing requirements (like IO Methods, Security level) etc? Can those settings be changed in your USB Stick?

             

          Regards,

             

          - Madhu Sudhan

          • 2. Re: 022001 Fiexkey pairing
            lars.harms_1424076

            Hi,

               

            i am using a CSR Harmony BLE Stick and i am sure that this device has the neccesary requirements. The Settings you mentioned are not changeable.

               

            What i am confused about, is the fact that the android device asks for the entry of the key. The CSR Harmony does not ask for a key. Afterwards there are two possible situations:

               

            - The device is paired successfull, but no scan code are transmitted.

               

            - The device refuses the connection, complaining about wrong key entry. But there was no change to enter a key

               

             

               

            best regards

               

            Lars

            • 3. Re: 022001 Fiexkey pairing
              Madhu Lakshmipathy

              Hi,

                 

              It seems your USB Stick does not support authenticated pairing. In your BLE HID Device project -> BLE Components Settings, please change your Security as Unauthenticated pairing with encryption and try. 

                 

              Regards,

                 

              - Madhu Sudhan