First commit

README

@@ -0,0 +1,7 @@
+mrBBIO
+
+A Python module for using Arduino-like language to control IO pins on 
+the BeagleBone.
+
+Some code based on PyBBIO by Alexander Hiam: 
+https://github.com/alexanderhiam/PyBBIO

mrbbio.py

@@ -0,0 +1,69 @@
+import time
+
+HIGH = "HIGH"
+LOW = "LOW"
+OUTPUT = "OUTPUT"
+INPUT = "INPUT"
+pinList = []
+
+def pinMode(pin, direction):
+	fw = file("/sys/class/gpio/export", "w")
+	fw.write("%d" % (pin))
+	fw.close()
+	fileName = "/sys/class/gpio/gpio%d/direction" % (pin)
+	fw = file(fileName, "w")
+	if direction == "INPUT":
+		fw.write("in")
+	else:
+		fw.write("out")
+	fw.close()
+	pinList.append(pin)
+
+
+def digitalWrite(pin, status):
+	fileName = "/sys/class/gpio/gpio%d/value" % (pin)
+	fw = file(fileName, "w")
+	if status == "HIGH":
+		fw.write("1")
+	if status == "LOW":
+		fw.write("0")
+	fw.close()
+
+def digitalRead(pin):
+	fileName = "/sys/class/gpio/gpio%d/value" % (pin)
+	fw = file(fileName, "r")
+	inData = fw.read()
+	if inData == "0\n":
+		return LOW
+	if inData == "1\n":
+		return HIGH	
+
+def pinUnexport(pin):
+	fw = file("/sys/class/gpio/unexport", "w")
+	fw.write("%d" % (pin))
+	fw.close()
+
+def cleanup():
+	for pin in pinList:
+		pinUnexport(pin)
+
+def delay(millis):
+	time.sleep(millis/1000)
+
+def run(setup, main): # from PyBBIO by Alexander Hiam - ahiam@marlboro.edu - www.alexanderhiam.com https://github.com/alexanderhiam/PyBBIO
+  """ The main loop; must be passed a setup and a main function.
+      First the setup function will be called once, then the main
+      function wil be continuously until a stop signal is raised, 
+      e.g. CTRL-C or a call to the stop() function from within the
+      main function. """
+  try:
+    setup()
+    while (True):
+      main()
+  except KeyboardInterrupt:
+    # Manual exit signal, clean up and exit happy
+    cleanup()
+  except Exception, e:
+    # Something may have gone wrong, clean up and print exception
+    cleanup()
+    print e

test.py

@@ -0,0 +1,15 @@
+#!/usr/bin/python
+from mrbbio import *
+
+def setup():
+	pinMode(44, OUTPUT)
+	pinMode(26, OUTPUT)
+	pinMode(70, INPUT)
+
+def loop():
+	digitalWrite(44, HIGH)
+	delay(1000)
+	digitalWrite(44, LOW)
+	delay(1000)
+
+run(setup, loop)