Beacon data from Ble.Startscan issue

[MuraliKrishnaDev]

Hi

My objective is to get the beacon data from advertising data i.e. uuid+Manfacturing data+Major_Minor+txpower,

I used cordova Ble scan plugin in Visual studio 2015,

I am unable to get whole beacon data from ble.start scan,

Please help me in this regard,

The following is the code after ble.Start scan,

if (device.advertisementData) { return; }

if (!device.scanRecord) { return; }

var byteArray = evothings.util.base64DecToArr(device.scanRecord); var pos = 0; var advertisementData = {}; var serviceUUIDs; var serviceData;

while (pos < byteArray.length) { var length = byteArray[pos++]; if (length == 0) { break; } length -= 1; var type = byteArray[pos++];

var BLUETOOTH_BASE_UUID = '-0000-1000-8000-00805f9b34fb'

// Convert 16-byte Uint8Array to RFC-4122-formatted UUID. function arrayToUUID(array, offset) { var k = 0; var string = ''; var UUID_format = [4, 2, 2, 2, 6]; for (var l = 0; l < UUID_format.length; l++) { if (l != 0) { string += '-'; } for (var j = 0; j < UUID_format[l]; j++, k++) { string += evothings.util.toHexString(array[offset + k], 1); } } return string; }

if (type == 0x02 || type == 0x03) // 16-bit Service Class UUIDs. { serviceUUIDs = serviceUUIDs ? serviceUUIDs : []; for (var i = 0; i < length; i += 2) { serviceUUIDs.push( '0000' + evothings.util.toHexString( evothings.util.littleEndianToUint16(byteArray, pos + i), 2) + BLUETOOTH_BASE_UUID); } } if (type == 0x04 || type == 0x05) // 32-bit Service Class UUIDs. { serviceUUIDs = serviceUUIDs ? serviceUUIDs : []; for (var i = 0; i < length; i += 4) { serviceUUIDs.push( evothings.util.toHexString( evothings.util.littleEndianToUint32(byteArray, pos + i), 4) + BLUETOOTH_BASE_UUID); } } if (type == 0x06 || type == 0x07) // 128-bit Service Class UUIDs. { serviceUUIDs = serviceUUIDs ? serviceUUIDs : []; for (var i = 0; i < length; i += 16) { serviceUUIDs.push(arrayToUUID(byteArray, pos + i)); } } if (type == 0x08 || type == 0x09) // Local Name. { advertisementData.kCBAdvDataLocalName = evothings.ble.fromUtf8( new Uint8Array(byteArray.buffer, pos, length)); } if (type == 0x0a) // TX Power Level. { advertisementData.kCBAdvDataTxPowerLevel = evothings.util.littleEndianToInt8(byteArray, pos); } if (type == 0x16) // Service Data, 16-bit UUID. { serviceData = serviceData ? serviceData : {}; var uuid = '0000' + evothings.util.toHexString( evothings.util.littleEndianToUint16(byteArray, pos), 2) + BLUETOOTH_BASE_UUID; var data = new Uint8Array(byteArray.buffer, pos + 2, length - 2); serviceData[uuid] = base64.fromArrayBuffer(data); } if (type == 0x20) // Service Data, 32-bit UUID. { serviceData = serviceData ? serviceData : {}; var uuid = evothings.util.toHexString( evothings.util.littleEndianToUint32(byteArray, pos), 4) + BLUETOOTH_BASE_UUID; var data = new Uint8Array(byteArray.buffer, pos + 4, length - 4); serviceData[uuid] = base64.fromArrayBuffer(data); } if (type == 0x21) // Service Data, 128-bit UUID. { serviceData = serviceData ? serviceData : {}; var uuid = arrayToUUID(byteArray, pos); var data = new Uint8Array(byteArray.buffer, pos + 16, length - 16); serviceData[uuid] = base64.fromArrayBuffer(data); } if (type == 0xff) // Manufacturer-specific Data. { // Annoying to have to transform base64 back and forth, // but it has to be done in order to maintain the API. advertisementData.kCBAdvDataManufacturerData = base64.fromArrayBuffer(new Uint8Array(byteArray.buffer, pos, length)); }

pos += length; } advertisementData.kCBAdvDataServiceUUIDs = serviceUUIDs; advertisementData.kCBAdvDataServiceData = serviceData; device.advertisementData = advertisementData;

Waiting for your response,

Please give any suggestions or inputs,

Thanks and Regards, Murali

[ghost]

@MuraliKrishnaDev Are you doring this for iOS and/or Android?

On iOS, scanRecord is not available.

Does this answer help? https://github.com/evothings/cordova-ble/issues/88#issuecomment-199305114

[ghost]

@MuraliKrishnaDev Closing this issue, contact me if you want to reopen, email mikael@evothings.com