Istvan Cserny / Hotboards_keypad

Sense keypresses from a 4x4 keypad A derivative ot he Hotboard_keypad library

Dependents:   26_Hotboards_MultiKey 26_Hotboards_EventKeypad

Fork of Hotboards_keypad by Hotboards MX

Diff: Hotboards_keypad.cpp

Revision:
3:c88c922efd74
Parent:
2:e870110f753b
--- a/Hotboards_keypad.cpp	Fri Mar 04 02:37:55 2016 +0000
+++ b/Hotboards_keypad.cpp	Mon May 30 09:30:12 2016 +0000
@@ -93,6 +93,7 @@
     // Re-intialize the row pins. Allows sharing these pins with other hardware.
     for (uint8_t c=0; c<sizeKpd.columns; c++) {
         columnPins[c].input();
+        columnPins[c].mode(PullUp);        
     }
 
     // bitMap stores ALL the keys that are being pressed.
@@ -105,6 +106,8 @@
         // Set pin to high impedance input. Effectively ends column pulse.
         rowPins[r].write( 1 );
         rowPins[r].input();
+        rowPins[r].mode(PullUp);           
+        
     }
 }