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| Line 3: |
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| File:Keypad_sch_01.png | Kaypad SCH 01 | | File:Keypad_sch_01.png | Kaypad SCH 01 |
| </gallery> | | </gallery> |
|
| |
|
| |
| === Demo code ===
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|
| |
| <syntaxhighlight lang="Arduino">
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| /* @file CustomKeypad.pde
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| || @version 1.0
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| || @author Alexander Brevig
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| | |
| ||
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| || @description
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| || | Demonstrates changing the keypad size and key values.
| |
| || #
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| */
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| #include <Keypad.h>
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|
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| const byte ROWS = 4; //four rows
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| const byte COLS = 4; //four columns
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| //define the cymbols on the buttons of the keypads
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| char hexaKeys[ROWS][COLS] = {
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| {'0','1','2','3'},
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| {'4','5','6','7'},
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| {'8','9','A','B'},
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| {'C','D','E','F'}
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| };
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| byte rowPins[ROWS] = {7, 6, 5, 4}; //connect to the row pinouts of the keypad
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| byte colPins[COLS] = {11, 10, 9, 8}; //connect to the column pinouts of the keypad
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|
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| //initialize an instance of class NewKeypad
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| Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
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|
| |
| void setup(){
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| Serial.begin(9600);
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| }
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|
| |
| void loop(){
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| char customKey = customKeypad.getKey();
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|
| |
| if (customKey){
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| Serial.println(customKey);
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| }
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| }
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|
| |
| </syntaxhighlight>
| |
|
| |
| ====Updated Demo Code 2013-05-24 ====
| |
| We have tested with library on 4X4 keypad, but there is some thing need to change.Please follow the steps.<br />
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| * Download this [[:File:Keypad.zip|library]], and it's refer to this arduino page.
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| * Use the example called "custom keypad" in the menu
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| * switched the pins, pin 1 connect to the keypad will make one row or one column not work out. so let's change all the wirings from 1-4 and 5-7 to 5-7 and 8-11.
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| * Always try to avoid pin 1, in other keypad version.
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|
