You may want to have a look at this blog post here: https://ionicallyspeaking.com/2016/05/06/connecting-to-a-bluetooth-smart-sensor-with-ionic-2/. It’s a good starter but you might expect some things that are not working as expected as it has been written at a time when Ionic 2 was still in beta. Also, it’s not complete. If I remember correctly it’s not handling retrieval of characteristics. But you should be able to manage that reading the ionic ble docs. https://ionicframework.com/docs/v2/native/ble/
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