This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Wireless UART

This section describes the implemented profiles and services, user interactions, and testing methods for the Wireless UART application.

Implemented profile and services

The Wireless UART application implements both the GATT client and server for the custom Wireless UART profile and services.

  • Wireless UART Service (UUID: 01ff0100-ba5e-f4ee-5ca1-eb1e5e4b1ce0)

  • Battery Service v1.0

  • Device Information Service v1.1

The Wireless UART service is a custom service that implements a custom writable ASCII Char characteristic (UUID:01ff0101-ba5e-f4ee-5ca1-eb1e5e4b1ce0) that holds the character written by the peer device.

The application behaves at first as a GAP central node. It enters GAP Limited Discovery Procedure and searches for other Wireless UART devices to connect.

To change the device role to GAP peripheral, use the ROLESW button. The device enters GAP General Discoverable Mode and waits for a GAP central node to connect.

Supported platforms

The following platforms support the Wireless UART application:

  • KW45B41Z-EVK

  • K32W148-EVK

  • FRDM-MCXW71

  • KW45B41Z-LOC

  • KW47-EVK

  • FRDM-MCXW72

  • MCX-W72-EVK

  • KW47-LOC