4 x 4 Keypad
The 4 x 4 matrix module keyboard module has total 16 buttons out of which 10 has number and 4 has letters on the interface. In this keypad only 8 out of 10 solders pads carry signals. It can be used in security equipment, access control and many more. It has +3.0V to +5VDC supply voltage with on-board pulled –up res...
Read moreThe 4 x 4 matrix module keyboard module has total 16 buttons out of which 10 has number and 4 has letters on the interface. In this keypad only 8 out of 10 solders pads carry signals. It can be used in security equipment, access control and many more. It has +3.0V to +5VDC supply voltage with on-board pulled –up resistors.
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