如何从BLE Ionic读取广告数据

Question

Advertising data is in readable format for iPhone, but it is in decimal format for android. How to read and interpret the advertising packet for android.

 this.scanner = this.ble.scan(["00EDSE-0000-00AE-9VVQ-9125475145125"], 1).subscribe((response) => {
              console.log("success scan.." + JSON.stringify(response));
              this.ble.connect(response.id).subscribe((response) => {
                this.toast.show("Successfully paired", '2000', 'bottom').subscribe((toast) => {
                  console.log(toast);
                  this.spinnerDialog.hide();
                });

Answer 1

Android advertising data is received as an ArrayBuffer . You need to convert it to a human readable string using javascripts String.fromCharCode method :

let stringResult = String.fromCharCode.apply(null, new Uint8Array(buffer));

Where buffer is the advertising property of you response object. You can find the ionic-native docs for BLE here .