Fix PSI

index.html

@@ -138,7 +138,7 @@
                     this.Status="Error";
                 },
                 gotWsMessage: function(e) {
-                    var d=e.data;
+                    var d=parseJSON(e.data);
                     this.currentSpeed=d.speed;
                     this.speed.set(this.currentSpeed);
                     this.currentRPM=d.rpm;