ST BLE Profile is a free Android application developed by STMicroelectronics NV. It is a companion tool that displays notifications from Bluetooth Low Energy (BLE) devices that implement peripheral profiles. The app is compatible with STM32 Nucleo boards and X-NUCLEO-IDB05A1 BlueNRG expansion boards that run middleware libraries and examples.

To use the app, simply launch it, scan the network, and establish a Bluetooth LE connection with your device from the discovered devices list. Then select the profile and view the received data. The app supports the following BLE standard peripheral profiles: Alert Notification, Blood Pressure, Find Me Target, Glucose Sensor, Thermometer, Heart Rate, Proximity Monitor, and Time Server.

Overall, the ST BLE Profile app is a useful tool for developers who need to test and debug BLE devices. It provides a clear and easy-to-read display of the notifications, making it easier to identify any issues or problems with the device.