import CoreBluetooth
class BLEManager: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate {
var centralManager: CBCentralManager!
var discoveredPeripheral: CBPeripheral?
override init() {
super.init()
centralManager = CBCentralManager(delegate: self, queue: nil)
}
func centralManagerDidUpdateState(_ central: CBCentralManager) {
if central.state == .poweredOn {
// Start scanning for peripherals
centralManager.scanForPeripherals(withServices: nil, options: nil)
}
}
func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
// Cache the peripheral
discoveredPeripheral = peripheral
centralManager.connect(peripheral, options: nil)
}
func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
peripheral.delegate = self
// Discover services after connecting
peripheral.discoverServices(nil)
}
func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
for service in peripheral.services! {
peripheral.discoverCharacteristics(nil, for: service)
}
}
func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
for characteristic in service.characteristics! {
// Set notification or read value
peripheral.setNotifyValue(true, for: characteristic)
peripheral.readValue(for: characteristic)
}
}
func peripheral(_ peripheral: CBPeripheral, didUpdateValueFor characteristic: CBCharacteristic, error: Error?) {
if let data = characteristic.value {
// Process the data received from the characteristic
print("Received data: \(data)")
}
}
}
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