             writeMatrixNow(currentMatrix)
         }
     }
-    
-    func clearMatrix() {
-        writeMatrix("empty")
-    }
 }
-
-//MARK: - Private constants
-
-private let shouldClearMatrixAfterTimeout = false
 
 //MARK: Nuimo BLE GATT service and characteristic UUIDs
 

    private var isWaitingForLedMatrixWriteResponse: Bool = false
    private var writeMatrixOnWriteResponseReceived: Bool = false
    private var writeMatrixResponseTimeoutTimer: NSTimer?
    private var clearMatrixTimer: NSTimer?
    
    public init(centralManager: CBCentralManager, uuid: String, peripheral: CBPeripheral) {
        self.centralManager = centralManager

        // When the matrix write response is not retrieved within 100ms we assume the response to have timed out
        writeMatrixResponseTimeoutTimer?.invalidate()
        writeMatrixResponseTimeoutTimer = NSTimer.scheduledTimerWithTimeInterval(0.1, target: self, selector: "didRetrieveMatrixWriteResponse", userInfo: nil, repeats: false)
    }
    
    func didRetrieveMatrixWriteResponse() {
