public static IObservable <Unit> AsyncPulse(this IDevice <bool> device)
{
//TODO rein
var ob = new Subject <Unit>();
device
.AsyncWriteTrue()
.Delay(TimeSpan.FromSeconds(1))
.Subscribe(x => device
.AsyncWriteFalse()
.Subscribe(y => ob.OnNext(new Unit())));
return(ob.Take(1));
}
