Send Data to Digital Display with Bluetooth

I require an APK for a BLE project where the source of information will be from a smartphone (server/sender) through Bluetooth BLE to a supermarket digital display (client/receiver) BLE Phase 1. Build APK “Proof of concept” it just needs to work 1. BLE Pairing Smartphone with digital display (Supermarket Electronic Label) (Write and rewrite text from the smartphone to electronic display through BLE) 2. Text data and generate QR code I have all necessary documents i.e. API, links to guide you through including source code. Phase 2. TBA As the project build with have at least 2 phases so it will be on a continues basis after that, pending on performance and cost. Will require an IOS app as well soon after that. Check ou the video