fix: fixes dict read error

Author: Russell Green

src/server.py

@@ -11,7 +11,7 @@
 """
 __author__ = "Russell Green"
 __license__ = "MIT"
-__version__ = "1.0.1"
+__version__ = "1.0.2"
 __maintainer__ = "Russell.Green"
 __email__ = "[email protected]"
 __status__ = "Production"
@@ -241,7 +241,7 @@ def set_get_pin_value(pin, value):
 
 
 def get_pin_history(pin):
-    if pin in gpio_pin_history[pin]:
+    if pin in gpio_pin_history:
         return gpio_pin_history[pin]
     else:
         return {"lastValue": None}