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Add web based samples
Read Temperature, Brightness, humidity http://learn.linksprite.com/pcduino/python/use-flask-server-on-pcduino3- to-build-web-based-sensor-reading/
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‎README.md‎

100644100755
File mode changed.

‎Samples/adc_test/adc.py‎

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from pinmap import PinMap
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pins = PinMap('/proc', 'adc', 6)
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def analog_read(channel):
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"""Return the integer value of an adc pin.
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adc0 and adc1 have 6 bit resolution.
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adc2 through adc5 have 12 bit resolution.
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"""
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with open(pins.get_path(channel), 'r') as f:
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return int(f.read(32).split(':')[1].strip())

‎Samples/adc_test/gpio/__init__.py‎

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#!/usr/bin/env python
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#
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# io test code for pcDuino ( http://www.pcduino.com )
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#
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__all__ = ['HIGH', 'LOW', 'INPUT', 'OUTPUT','digitalWrite', 'digitalRead', "pinMode"]
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_GPIO_PINS = ('gpio0','gpio1','gpio2','gpio3','gpio4','gpio5','gpio6','gpio7',
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'gpio8', 'gpio9', 'gpio10', 'gpio11', 'gpio12', 'gpio13',
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'gpio14', 'gpio15', 'gpio16', 'gpio17', 'gpio18', 'gpio19')
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_PIN_FD_PATH = '/sys/devices/virtual/misc/gpio/pin/%s'
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_MODE_FD_PATH = '/sys/devices/virtual/misc/gpio/mode/%s'
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HIGH = 1
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LOW = 0
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INPUT = 0
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OUTPUT = 1
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class InvalidChannelException(Exception):
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"""The channel sent is invalid on pcDuino board """
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pass
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def _GetValidId(channel):
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if channel in _GPIO_PINS:
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return channel
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else:
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raise InvalidChannelException
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def digitalWrite(channel, value):
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"""Write to a GPIO channel"""
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id = _GetValidId(channel)
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with open(_PIN_FD_PATH % id, 'w') as f:
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f.write('1' if value == HIGH else '0')
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def digitalRead(channel):
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"""Read from a GPIO channel"""
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id = _GetValidId(channel)
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with open(_PIN_FD_PATH % id, 'r') as f:
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return f.read(1) == '1'
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def pinMode(channel, mode):
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""" Set Mode of a GPIO channel """
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id = _GetValidId(channel)
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with open(_MODE_FD_PATH % id, 'w') as f:
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f.write('0' if mode == INPUT else '1')

‎Samples/adc_test/pinmap.py‎

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import os.path
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class InvalidChannelException(ValueError):
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"""The channel sent was invalid."""
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def __init__(self, pin):
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super(InvalidChannelException, self).__init__("pin %s not found" % pin)
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class PinMap(object):
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def __init__(self, path, prefix, count):
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self.pins = ['%s%s' % (prefix, i) for i in xrange(count)]
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self.path = path
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def get_path(self, pin, path=None):
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"""Get path of pin fd.
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pin can either be the pin basename (i.e. 'adc2') or pin number (i.e. 2)
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if prefix is supplied, override the default path prefix.
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"""
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if not path:
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path = self.path
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if isinstance(pin, int):
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try:
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pin = self.pins[pin]
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except IndexError:
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raise InvalidChannelException(pin)
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if not pin in self.pins:
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raise InvalidChannelException(pin)
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return os.path.join(path, pin)

‎Samples/face-tracking-robot/gpio/__init__.py‎

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#!/usr/bin/env python
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#
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# io test code for pcDuino ( http://www.pcduino.com )
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#
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__all__ = ['HIGH', 'LOW', 'INPUT', 'OUTPUT','digitalWrite', 'digitalRead', "pinMode"]
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_GPIO_PINS = ('gpio0','gpio1','gpio2','gpio3','gpio4','gpio5','gpio6','gpio7',
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'gpio8', 'gpio9', 'gpio10', 'gpio11', 'gpio12', 'gpio13',
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'gpio14', 'gpio15', 'gpio16', 'gpio17', 'gpio18', 'gpio19')
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_PIN_FD_PATH = '/sys/devices/virtual/misc/gpio/pin/%s'
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_MODE_FD_PATH = '/sys/devices/virtual/misc/gpio/mode/%s'
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HIGH = 1
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LOW = 0
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INPUT = 0
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OUTPUT = 1
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class InvalidChannelException(Exception):
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"""The channel sent is invalid on pcDuino board """
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pass
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def _GetValidId(channel):
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if channel in _GPIO_PINS:
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return channel
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else:
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raise InvalidChannelException
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def digitalWrite(channel, value):
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"""Write to a GPIO channel"""
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id = _GetValidId(channel)
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with open(_PIN_FD_PATH % id, 'w') as f:
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f.write('1' if value == HIGH else '0')
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def digitalRead(channel):
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"""Read from a GPIO channel"""
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id = _GetValidId(channel)
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with open(_PIN_FD_PATH % id, 'r') as f:
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return f.read(1) == '1'
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def pinMode(channel, mode):
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""" Set Mode of a GPIO channel """
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id = _GetValidId(channel)
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with open(_MODE_FD_PATH % id, 'w') as f:
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f.write('0' if mode == INPUT else '1')

‎Samples/face-tracking-robot/photobooth.py‎

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from time import sleep, time
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from SimpleCV import Camera, Image, Display
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import gpio
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myCamera = Camera(prop_set={'width':177, 'height': 150})
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myDisplay = Display(resolution=(177, 150))
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stache = Image("abc.jpg")
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#stacheMask = \
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# stache.createBinaryMask(color1=(0,0,0), color2=(254,254,254))
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#stacheMask = stacheMask.invert()
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gpio.pinMode("gpio13", gpio.INPUT)
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def mustachify(frame):
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faces = frame.findHaarFeatures('face')
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if faces:
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for face in faces:
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print "Face at: " + str(face.coordinates())
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myFace = face.crop()
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noses = myFace.findHaarFeatures('nose')
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if noses:
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nose = noses.sortArea()[-1]
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print "Nose at: " + str(nose.coordinates())
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xmust = face.points[0][0] + nose.x - (stache.width/2)
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ymust = face.points[0][1] + nose.y + (stache.height/3)
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else:
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return frame
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frame = frame.blit(stache, pos=(xmust, ymust), mask=stacheMask)
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return frame
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else:
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return frame
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while not myDisplay.isDone():
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inputValue = gpio.digitalRead("gpio13")
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frame = myCamera.getImage()
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if inputValue == True:
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frame = frame.blit(stache, pos=(0,0), mask=stache)
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#frame = mustachify(frame)
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frame.save("photo-" + str(time()) + ".jpg")
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frame = frame.flipHorizontal()
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frame.show()
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sleep(3)
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else:
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frame = frame.flipHorizontal()
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frame.save(myDisplay)
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sleep(.05)

‎Samples/face-tracking-robot/track-face.py‎

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from SimpleCV import *
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from time import sleep
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import gpio
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servo_pin = "gpio2"
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myCamera = Camera(prop_set={'width':480,'height':480})
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myDisplay = Display(resolution=(480,480))
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def delayMicroseconds(us):
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sleep(1.0*us/1000/1000)
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def delay(ms):
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sleep(1.0*ms/1000)
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def setup():
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gpio.pinMode(servo_pin, gpio.OUTPUT)
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set_servo(1500)
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def set_servo(x):
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duty = x
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for j in range(20):
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gpio.digitalWrite(servo_pin, gpio.HIGH)
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delayMicroseconds(duty)
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gpio.digitalWrite(servo_pin, gpio.LOW)
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delayMicroseconds(20000-duty)
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def loop():
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while not myDisplay.isDone():
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old_x = 1450
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duty = 1500
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frame = myCamera.getImage()
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faces = frame.findHaarFeatures('face')
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if faces:
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for face in faces:
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new_x = (face.points[1][0]+face.points[0][0])/2
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new_y = (face.points[3][1]+face.points[0][1])/2
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if new_x != old_x :
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if new_x > old_x :
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duty -= 50
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set_servo(duty)
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if new_x < old_x :
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duty +=50
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set_servo(duty)
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facelayer = DrawingLayer((frame.width, frame.height))
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facelayer.circle( (new_x,new_y),(face.points[3][1]-face.points[0][1])/2,color=Color.RED )
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#facelayer.circle( (face.points[0][0],face.points[0][1]),2,color=Color.RED )
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#facelayer.circle( (face.points[1][0],face.points[1][1]),2,color=Color.RED )
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#facelayer.circle( (face.points[2][0],face.points[2][1]),2,color=Color.RED )
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#facelayer.circle( (face.points[3][0],face.points[3][1]),2,color=Color.RED )
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#facebox_dim = (200,200)
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#center_point = (frame.width/2, frame.height/2)
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#facebox = facelayer.centeredRectangle(center_point,facebox_dim)
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#facelayer.text("GO", (0,0), color=Color.WHITE)
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#frame.addDrawingLayer(newlayer)
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frame.addDrawingLayer(facelayer)
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frame.applyLayers()
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frame.show()
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old_x = new_x
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old_y = new_y
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else:
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gpio.digitalWrite(servo_pin, gpio.LOW)
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#set_servo(1500)
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frame.save(myDisplay)
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sleep(.1)
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def main():
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setup()
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loop()
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main()

‎Samples/face-tracking-robot/tracking-robot.py‎

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import gpio
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import time
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servo_pin = "gpio2"
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def delayMicroseconds(us):
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time.sleep(1.0*us/1000/1000)
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def delay(ms):
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time.sleep(1.0*ms/1000)
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def setup():
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gpio.pinMode(servo_pin, gpio.OUTPUT)
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def loop():
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duty = 0
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while True:
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for i in range(5):
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duty +=500
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for j in range(20):
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gpio.digitalWrite(servo_pin, gpio.HIGH)
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delayMicroseconds(duty)
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gpio.digitalWrite(servo_pin, gpio.LOW)
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delayMicroseconds(20000-duty)
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delay(500)
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time.sleep(1.5)
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for i in range(5):
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duty -=500
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for j in range(20):
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gpio.digitalWrite(servo_pin, gpio.HIGH)
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delayMicroseconds(duty)
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gpio.digitalWrite(servo_pin, gpio.LOW)
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delayMicroseconds(20000-duty)
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delay(500)
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time.sleep(1.5)
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def main():
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setup()
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loop()
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main()

‎Samples/hello-flask.py‎

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from flask import Flask
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app = Flask(__name__)
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@app.route("/")
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def hello():
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return "Welcome to pcDuino !"
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if __name__ == "__main__" :
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app.run (host='0.0.0.0',port=80,debug=True)

‎Samples/hello-gpio/gpio/__init__.py‎

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#!/usr/bin/env python
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#
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# io test code for pcDuino ( http://www.pcduino.com )
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#
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__all__ = ['HIGH', 'LOW', 'INPUT', 'OUTPUT','digitalWrite', 'digitalRead', "pinMode"]
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_GPIO_PINS = ('gpio0','gpio1','gpio2','gpio3','gpio4','gpio5','gpio6','gpio7',
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'gpio8', 'gpio9', 'gpio10', 'gpio11', 'gpio12', 'gpio13',
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'gpio14', 'gpio15', 'gpio16', 'gpio17', 'gpio18', 'gpio19')
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_PIN_FD_PATH = '/sys/devices/virtual/misc/gpio/pin/%s'
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_MODE_FD_PATH = '/sys/devices/virtual/misc/gpio/mode/%s'
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HIGH = 1
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LOW = 0
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INPUT = 0
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OUTPUT = 1
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class InvalidChannelException(Exception):
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"""The channel sent is invalid on pcDuino board """
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pass
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def _GetValidId(channel):
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if channel in _GPIO_PINS:
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return channel
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else:
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raise InvalidChannelException
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def digitalWrite(channel, value):
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"""Write to a GPIO channel"""
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id = _GetValidId(channel)
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with open(_PIN_FD_PATH % id, 'w') as f:
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f.write('1' if value == HIGH else '0')
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def digitalRead(channel):
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"""Read from a GPIO channel"""
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id = _GetValidId(channel)
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with open(_PIN_FD_PATH % id, 'r') as f:
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return f.read(1) == '1'
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def pinMode(channel, mode):
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""" Set Mode of a GPIO channel """
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id = _GetValidId(channel)
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with open(_MODE_FD_PATH % id, 'w') as f:
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f.write('0' if mode == INPUT else '1')

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