first commit

led.py

@@ -0,0 +1,52 @@
+#!/usr/bin/python
+import sys #reconocer lo que hay en la terminal
+import time 
+LED_PATH = "/sys/class/leds/beaglebone:green:usr3"
+
+def writeLED(fileName, value, path=LED_PATH):
+    """
+    Ayuda de la rutina
+    writeLED(fileName, value, path=LED_PATH)
+    """
+    fo = open(path + fileName, "w")
+    fo.write(value)
+    fo.close()
+    return
+
+def removeTrigger():
+    writeLED("/trigger","none")
+    return
+
+print("Starting App")
+#removeTrigger()
+#writeLED("/brightness", "1")
+#print("LED3 on")
+#print("Finish App")
+if len(sys.argv)!=2:
+    print("Incorrect number of arguments")
+    sys.exit(2)
+    
+if sys.argv[1] == "on":
+    print("LED on")
+    removeTrigger()
+    writeLED("/brightness", "1")
+    print("LED3 on")
+elif sys.argv[1] == "off":
+    print("LED off")
+    removeTrigger()
+    writeLED("/brightness", "0")
+    print("LED3 off")
+elif sys.argv[1]=="b":
+    print("blinking")
+    removeTrigger()
+    while True:
+        writeLED("/brightness", "1")
+        time.sleep(0.5)
+        writeLED("/brightness","0")
+        time.sleep(0.5)
+    
+        
+else:
+    print("Wrong command!!!")
+    
+print("Script done")