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PSoC 4 MCU

Anonymous
Not applicable

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

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1 Solution
Anonymous
Not applicable

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

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3 Replies
Anonymous
Not applicable

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

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Anonymous
Not applicable

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

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Anonymous
Not applicable

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

View solution in original post

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Reply