anchor.diff:  
       use timerSetterDisposable = Observable.Interval(System.TimeSpan.FromSeconds 40.0) 
                                   |> Observable.subscribe (fun _ -> sensor.Detect())
  +    
  +    buttons.Start()
  +    sensor.Start()
  +    Trik.Helpers.SendToShell """v4l2-ctl -d "/dev/video2" --set-ctrl white_balance_temperature_auto=1"""
  +
   
       exit.WaitOne() |> ignore
       0
  
positive.code: let maxAngleY = 60
  let scaleConstX = 10
  let scaleConstY = 20
  let RGBdepth = 255.
  let SVscale = 100.
  let minMass = 5
  let deepPink = (255, 20, 147)
  
  let scale var mA sC  = (Trik.Helpers.limit (-mA) mA var) / sC
  
  
negative.code:     let sensor = model.ObjectSensor
      let buttons = new ButtonPad()
  
      model.LedStripe.SetPower (75, 20, 20)
  
      let sensorOutput = sensor.ToObservable()
      
  