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autoloader

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+#simpleloader.py
+#waits 5 seconds for gpio12 to go low
+#if it doesn't, loads autoload.py
+#install it as main.py
+import machine
+import sys
+import time
+print('Press GPIO12 to exit to console in 5 secs')
+flag=0
+pin12=machine.Pin(12, machine.Pin.IN)
+def console(x):
+    global flag
+    flag=1
+pin12.irq(console, machine.Pin.IRQ_FALLING)
+time.sleep(5)
+if flag==0:
+    print('Loading autoload.py...')
+    
+else:
+    print('Exiting to console')