kopia lustrzana https://github.com/GuyCarver/MicroPython
61 wiersze
1.6 KiB
Python
61 wiersze
1.6 KiB
Python
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import machine
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#NOTE: For button, Pin 34 didn't work, but pin 32 did. Don't know what the difference is but not all pins work.
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class joystick(object) :
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_x_center = 1789.0
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_y_center = 1817.0
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_pos_x = 4095.0 - _x_center
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_pos_y = 4095.0 - _y_center
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def __init__( self, aX, aY, aButton ) :
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self._jx = machine.ADC(machine.Pin(aX))
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self._jy = machine.ADC(machine.Pin(aY))
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self._jx.width(machine.ADC.WIDTH_12BIT)
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self._jy.width(machine.ADC.WIDTH_12BIT)
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self._jx.atten(machine.ADC.ATTN_11DB)
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self._jy.atten(machine.ADC.ATTN_11DB)
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#Must be pull up. Pull down doesn't register change.
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self._js = machine.Pin(aButton, machine.Pin.IN, machine.Pin.PULL_UP)
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self._x = 0.0
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self._y = 0.0
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self._button = False
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self._index = 0
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self._xA = [0, 0, 0]
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self._yA = [0, 0, 0]
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@property
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def x( self ) :
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'''Return value from -1.0 to 1.0.'''
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return self._x
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@property
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def y( self ) :
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'''Return value from -1.0 to 1.0.'''
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return self._y
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@property
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def button( self ) :
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'''return True or False.'''
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return self._button
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def update( self ) :
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self._xA[self._index] = self._jx.read()
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self._yA[self._index] = self._jy.read()
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self._index += 1
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if self._index >= 3 :
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self._index = 0
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rx = float(sum(self._xA)) / 3.0 - joystick._x_center
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ry = float(sum(self._yA)) / 3.0 - joystick._y_center
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dx = joystick._pos_x if rx >= 0 else joystick._x_center
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dy = joystick._pos_y if ry >= 0 else joystick._y_center
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self._x = rx / dx
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self._y = ry / dy
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#Value is 1 when not pressed and 0 when pressed.
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self._button = not self._js.value()
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