the ribbon has a faint 1 and 8 on black ribbon brick on the end. with the keypad facing up; they start from left to right. rows are the first 4, columns are the second 4. all my pads worked; i initially thought i had an issue with one of the columns, but it turns out it was my metro pin that was not working correctly. below is the code i used to make it work. NOTE the 8 pin instead of the 1 ( broken on my metro )
#include <Arduino.h>
#include <stdio.h>
#include <Keypad.h>
const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns
//define the cymbols on the buttons of the keypads
char hexaKeys[ROWS][COLS] = {
{'1','4','7','*'},
{'2','5','8','0'},
{'3','6','9','#'},
{'A','B','C','D'}
};
byte rowPins[ROWS] = {3, 2, 8, 0}; //connect to the row pinouts of the keypad // blue
byte colPins[COLS] = {7, 6, 5, 4}; //connect to the column pinouts of the keypad // yellow
//initialize an instance of class NewKeypad
Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
void setup(){
Serial.begin(9600);
}
void loop(){
char customKey = customKeypad.getKey();
if (customKey){
Serial.println(customKey);
}
}
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Product information
| Package Dimensions | 6.38 x 4.8 x 0.39 inches |
|---|---|
| Item Weight | 0.704 ounces |
| ASIN | B06XHFC19G |
| Item model number | JT0699 |
| Customer Reviews |
4.4 out of 5 stars |
| Is Discontinued By Manufacturer | No |
| Date First Available | May 14, 2017 |
| Manufacturer | WINGONEER |
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