The app connects to paired devices and receives row and usual data by arrays of buffers. Receeived data is displayed by liner chart
The app is made by Ionic. For building app first install ionic librery
For chart is used librery chart.js
First install ionic and all dependances for it. Then build and run the app on connected devices or on simulation. You can look here for help https://ionicframework.com/docs/v1/guide/installation.html