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4x4 Matrix keypad
SKU - PM14040
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₹1379.00
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4x4 matrix keypad useful for making various password based applications, Motor controlling applications, similar to phone keypad.
A 4x4 matrix keypad requiring eight Input/Output ports for interfacing issued as an example. Rows are connected to Peripheral Input/Output (PIO) pins configured as output. Columns are connected to PIO pins configured as input with interrupts. In this configuration, four pull-up resistors must be added in order to apply a high level on the corresponding input pins

4x4 Matrix keypad - PCB Power Market