Configuration of BLE GATT server

Configuration of BLE GATT

There are new settings to enable and control the VTAP BLE GATT server feature which are used in the reader’s config.txt file. For example:

Example: Changes to config.txt to enable a BLE GATT server

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BTServerMode=1            ; BLE GATT server enabled
BTServerPIN=123456        ; Optional PIN set
BTServerName=MyVTAPName   ; Optional change of advertised name from serial number

The BTServerMode defaults to =0 which disables the custom GATT server, which means the BTKeyboardMode setting can then be used to enable the BLE keyboard. If BTServerMode is enabled, the BLE keyboard will not be enabled, even when BTKeyboardMode=1 is set.

With BTServerMode=1, the custom service is enabled, then:

BTServerPIN can be used to set a 6 digit PIN required to access the VTAP custom service. If this option is not present or set to =0, then no PIN is required to pair.
BTServerName can be used to set your own Bluetooth advertised device name, overriding the default which is to advertise the VTAP reader’s serial number as its device name.