I've iPhone app and I want to connect with bluetooth device to get Glucose Measurements. You can find the device from here .
After reading Apple documentation about Core Bluetooth I started reading these tutorial . Also I get the services ID's for bluetooth devices from these link here
So I started to code like in the tutorial after understanding the basics.
And these my Code:
#define POLARH7_HRM_DEVICE_INFO_SERVICE_UUID @"180A" // for Device Information service.
#define POLARH7_HRM_HEART_RATE_SERVICE_UUID @"1808" // For Glucose service.
NSArray *services = @[[CBUUID UUIDWithString:POLARH7_HRM_HEART_RATE_SERVICE_UUID], [CBUUID UUIDWithString:POLARH7_HRM_DEVICE_INFO_SERVICE_UUID]];
CBCentralManager *centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];
[centralManager scanForPeripheralsWithServices:services options:nil];
self.centralManager = centralManager;
And I've implemented the delegates for CBCentralManagerDelegate and CBPeripheralDelegate
I receive a notification for centralManagerDidUpdateState
- (void)centralManagerDidUpdateState:(CBCentralManager *)central
{
// Determine the state of the peripheral
if ([central state] == CBCentralManagerStatePoweredOff) {
NSLog(@"CoreBluetooth BLE hardware is powered off");
}
else if ([central state] == CBCentralManagerStatePoweredOn) {
NSLog(@"CoreBluetooth BLE hardware is powered on and ready");
}
else if ([central state] == CBCentralManagerStateUnauthorized) {
NSLog(@"CoreBluetooth BLE state is unauthorized");
}
else if ([central state] == CBCentralManagerStateUnknown) {
NSLog(@"CoreBluetooth BLE state is unknown");
}
else if ([central state] == CBCentralManagerStateUnsupported) {
NSLog(@"CoreBluetooth BLE hardware is unsupported on this platform");
}
}
My NSLog logs : CoreBluetooth BLE hardware is powered on and ready.
But I did not receive a notification for central didDiscoverPeripheral
.
- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI
{
NSString *localName = [advertisementData objectForKey:CBAdvertisementDataLocalNameKey];
if ([localName length] > 0) {
NSLog(@"Found the heart rate monitor: %@", localName);
[self.centralManager stopScan];
self.polarH7HRMPeripheral = peripheral;
peripheral.delegate = self;
[self.centralManager connectPeripheral:peripheral options:nil];
}
}
These method is not being called.
So the central (my iPhone) couldn't discover the Peripheral which is my Glucose device.
I couldn't find the device when I search for it from Setting ->Bluetooth.
If centralManager:didDiscoverPeripheral:advertisementData:RSSI:
is never called, this likely means that there is no peripheral with one of provided CBUUIDs. You could try to provide nil
instead of the services-array and check if there is any peripheral available (don't do this in production mode).
OK, I think I figured out the problem after sending email to TaiDoc company they told me that these device dose not support iPhone bluetooth integration.
I tried to connect with Tom-Tom GPS watch and it's connected successfully :) So I think the problem of the issue is a Hardware issue.
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