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lines changed Original file line number Diff line number Diff line change @@ -62,15 +62,15 @@ def pressed_keys(self):
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pin .direction = Direction .INPUT
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pin .pull = Pull .UP
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- for row in range ( len ( self .row_pins ) ):
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+ for row , row_pin in enumerate ( self .row_pins ):
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# set one row low at a time
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- self . row_pins [ row ] .direction = Direction .OUTPUT
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- self . row_pins [ row ] .value = False
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+ row_pin .direction = Direction .OUTPUT
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+ row_pin .value = False
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# check the column pins, which ones are pulled down
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- for col in range ( len ( self .col_pins ) ):
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- if not self . col_pins [ col ] .value :
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+ for col , val in enumerate ( self .col_pins ):
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+ if not val .value :
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pressed .append (self .keys [row ][col ])
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# reset the pin to be an input
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- self . row_pins [ row ] .direction = Direction .INPUT
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- self . row_pins [ row ] .pull = Pull .UP
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+ row_pin .direction = Direction .INPUT
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+ row_pin .pull = Pull .UP
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return pressed
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