Diff: main.cpp

Revision:

0:051324d87f93

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat May 05 14:42:39 2018 +0000
@@ -0,0 +1,71 @@
+#include "mbed.h"
+#include "TextLCD.h"
+
+DigitalOut myled(LED1);
+
+
+PinName rowPins[4] = { PB_0 , PA_4 , PA_1 , PA_0 };
+PinName colPins[4] = { PA_13 , PA_14 , PC_14 , PC_15  };
+
+DigitalOut* _rows[4];
+DigitalIn* _cols[4];
+
+TextLCD lcd(D2,D3,D4,D5,D6,D7); 
+
+void printKeyBoard(){
+    //lcd.cls();
+    
+    
+    lcd.locate(0,0);
+    lcd.printf("KeyBoard: ");
+    
+    lcd.locate(0,1);
+    for(int i = 0;i < 4 ;i++){
+        DigitalOut *row = _rows[i];
+        
+        char level = 'L';
+        if(row->read() == 1){
+            level = 'H';
+        }
+        lcd.printf( "%c" , level);
+    }
+    
+    lcd.printf( "%c" , " ");
+    
+    
+    for(int i = 0;i < 4;i++){
+         DigitalIn *col = _cols[i];
+        
+        char level = 'L';
+        if(col->read() == 1){
+            level = 'H';
+        }
+        lcd.printf( "%c" , level);
+    }
+        
+}
+
+int main() {
+    
+    lcd.locate(0,0);
+    lcd.printf("Clean");
+    
+    
+    for(int i = 0;i < 4; i++){
+        _rows[i] = new DigitalOut(rowPins[i]);
+        _rows[i]->write(0);
+    }
+    for(int i = 0;i < 4; i++){
+        _cols[i] = new DigitalIn(colPins[i],PullDown);
+    }
+   
+    
+    while(1) {
+        for (int i = 0; i < 4; i++) {
+            _rows[i]->write(1);
+            printKeyBoard();
+             wait(0.5);
+            _rows[i]->write(0);
+        }
+    }
+}