Bluetooth Low Energy (BLE) is a new standard for wireless communication that enables communication between devices at a shorter distance, which makes it very suitable for IoT applications. BLE can be used for communication between devices that are very far from each other.

The nRF Bluetooth LE Joiner app is an application that allows you to join two Bluetooth LE networks together, which makes it very useful for IoT applications where you want to connect a device to a network. The application is developed by Nordic Semiconductor, a company that specializes in the development of IoT applications.

This application is developed for Android devices, but it is possible to use it on other devices as long as they are compatible with Bluetooth LE. The application will scan for Bluetooth LE devices in range, which makes it very easy to use. Once a device is found, the user is presented with the option to connect to the device.

The app will also provide the users with the option to create a new network. The network will be created with a random name and a random password, which makes it very secure. The user is also presented with the option to choose a template, which makes it easy to use.