MTkeypad: Test 1
Event management for Uno, Nano, Mega
Simple test
Complete program example
// MTkeypad basic test
// 4 5 6 7
// │ │ │ │
// ├─1 ├─2 ├─3 ├─A
// │ └──│─┴──│─┴──│─┴───A0
// ├─4 ├─5 ├─6 ├─B
// │ └──│─┴──│─┴──│─┴───A1
// ├─7 ├─8 ├─9 ├─C
// │ └──│─┴──│─┴──│─┴───A2
// └─* └─0 └─# └─D
// └────┴────┴────┴───A3
#include <MTobjects.h> // V1.1.0 See http://arduino.dansetrad.fr/en/MTobjects
const uint8_t PIN_LINES[] = {4 lines_on, A0, A1, A2, A3}; // Keypad lines pins
const uint8_t PIN_COLUMNS[] = {4 columns_on, 4, 5, 6, 7}; // Keypad columns pins
void display(int8_t key) // Called when you press a key
{
Serial.print("Key N°");
Serial.print(key);
Serial.println(" pressed");
}
void release(void) // Called when you drop all the keys
{
Serial.println("No key pressed");
}
MTkeypad Keypad(PIN_LINES, PIN_COLUMNS, display, release); // Implementation of keypad
void setup()
{
Serial.begin(115200); // Also put the console on 115200 Bauds
}
void loop(){}