In this video I'll take a look at the wiring and code required to use three different common keypads as inputs to your electronic projects.
Wiring Diagram: https://drive.google.com/open?id=1N_nbrhfTozJPhEg6BhTkrSKUABcI05MW
1x4 Membrane
£0.50 from https://www.ebay.co.uk/itm/2PCS-1x4-Matrix-Array-4-Key-Membrane-Switch-Keypad-Keyboard-1-4-Keys-for-Arduino/291981134446
Code: https://drive.google.com/open?id=16tTkXA515MZ7Ofco5ZM4qiIsEXh7KbD8
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01:14 Introduction
02:39 Code and Wiring + Description of INPUT_PULLUP
09:12 Demo
3x4 Matrix Membrane
£0.50 each from
https://www.ebay.co.uk/itm/2PCS-Matrix-Array-12-Key-Membrane-Switch-Keypad-Keyboard-For-Arduino-AVR-4-x-3/191765733230
Code: https://drive.google.com/open?id=11veQE3fE-wb6uuoT2edY2jX05IrsS4Qw
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09:51 Introduction
11:15 Code and Wiring
14:25 Demo
4x4 Matrix Keypad
£2.00 each from https://www.ebay.co.uk/p/4-X-4-Matrix-Array-16-Keys-4-4-Switch-Keypad-Keyboard-Module-for-Arduino/941832464
Code: https://drive.google.com/open?id=1ZTGoFDMS3Bd1WY9U4QFGkfkGa3s1VLWx
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14:51 Introduction
16:03 Code and Wiring
17:37 Demo