import SwiftUI struct ContentView: View { @EnvironmentObject var bluetoothManager: BluetoothManager var body: some View { VStack { Text(bluetoothManager.status) Button(action: bluetoothManager.led_on) { Text("LED On") } Button(action: bluetoothManager.led_off) { Text("LED Off") } } .padding() .buttonStyle(BorderedButtonStyle()) } }