diff --git a/devtimer.py b/devtimer.py
index 7ad3051..5214741 100755
--- a/devtimer.py
+++ b/devtimer.py
@@ -17,7 +17,7 @@
 
 from ds18b20 import *
 from tm1637 import *
-from wiringpi import wiringPiSetupGpio
+from wiringpi import wiringPiSetupGpio, pinMode, digitalRead, GPIO
 
 import globals
 
@@ -26,9 +26,9 @@
 # Constants
 #####
 
-# Display Hardware Configuration
+# GPIO Ports And Other Hardware Constants
 
-TIME_BRIGHT = 0x0a
+TIME_BRIGHT = 0x0a    # Displays
 TIME_CLK = 21
 TIME_DIO = 20
 
@@ -38,6 +38,9 @@
 
 DIMMING = 1   # How much to dim display in film mode
 
+FOOTSW = 6      # GPIO port to read footswitch state
+RUNNING = False # Whether or not to run the timer
+
 # General Constants
 
 DEBUG = True                  # Debugging switch
@@ -79,12 +82,32 @@
               (1.445, 1.380, 1.318, 1.259, 1.202, 1.148, 1.096, 1.047, 1.000, 0.955, 0.912, 0.871, 0.832, 0.795, 0.759, 0.725, 0.692, 0.661, 0.631, 0.603, 0.576)
              )
 
+#####
+# Supporting Subroutines
+#####
 
 # Beep at the user at fixed intervals
 
 def beep():
     print("Beep!")
 
+# Check to see if footswitch got pressed
+
+def monitor_footsw():
+
+    while True:
+        if not digitalRead(FOOTSW):  # Button push pulls down
+            Thread(name="ReadFootSW", target=read_footsw).start()
+        sleep(.2)
+
+def read_footsw():
+    global RUNNING
+
+    sleep(0.10)
+    if not digitalRead(FOOTSW):
+        RUNNING = not RUNNING
+        print(RUNNING)
+
 
 # Update the display with elapsed time
 
@@ -127,6 +150,7 @@
     # Setup the hardware
 
     wiringPiSetupGpio()
+    pinMode(FOOTSW, GPIO.INPUT)
 
     # Dim displays in film mode
 
@@ -143,6 +167,10 @@
     get_temps.start()
     sleep(1)     # Wait a bit for the 1st temp measurement to complete
 
+    # Start monitoring for footswitch presses
+
+    Thread(name="MonitorFootSW", target=monitor_footsw).start()
+
     # Start timing, using the selected profile and measured temperature
 
     elapsed_time = 0