diff --git a/src/RowBase.cpp b/src/RowBase.cpp
index 00fc002..0a345d0 100644
--- a/src/RowBase.cpp
+++ b/src/RowBase.cpp
@@ -1,4 +1,20 @@
 #include "RowBase.h"
+/*
+process() scans the row and calls any newly pressed or released keys.
+*/
+void RowBase::process()
+{
+    //these variables are all bitwise, one bit per key
+    uint8_t rowState;                           //1 means pressed, 0 means released
+    uint16_t rowEnd;                            //1 bit marks positioned after last key of row
+    uint8_t debouncedChanged;                   //1 means debounced changed
+
+    wait();
+    rowState = scan(rowEnd);
+    debouncedChanged = debounce(rowState, debounced);
+    pressRelease(rowEnd, debouncedChanged);
+}
+
 /* wait() delay's scan to give switches time to debounce.
 This version of wait() is very simple.  More sophisticated versions can override this one.
 
diff --git a/src/RowBase.h b/src/RowBase.h
index c6dfd4b..63214a3 100644
--- a/src/RowBase.h
+++ b/src/RowBase.h
@@ -23,6 +23,8 @@ class RowBase
         void pressRelease(const uint16_t rowEnd, const uint8_t debouncedChanged);
     public:
         RowBase(Key *const ptrsKeys[]) : ptrsKeys(ptrsKeys), debounced(0) { }
-        virtual void process()=0;
+        virtual void process();
+        virtual uint8_t scan(uint16_t& rowEnd)=0;
+        virtual uint8_t debounce(const uint8_t rowState, uint8_t& debounced)=0;
 };
 #endif
diff --git a/src/Row_IOE.cpp b/src/Row_IOE.cpp
index 714a615..67527b3 100644
--- a/src/Row_IOE.cpp
+++ b/src/Row_IOE.cpp
@@ -1,17 +1,11 @@
 #include "Row_IOE.h"
 
-/*
-process() scans the row and calls any newly pressed or released keys.
-*/
-void Row_IOE::process()
+uint8_t Row_IOE::scan(uint16_t& rowEnd)
 {
-    //these variables are all bitwise, one bit per key
-    uint8_t rowState;                           //1 means pressed, 0 means released
-    uint16_t rowEnd;                            //1 bit marks positioned after last key of row
-    uint8_t debouncedChanged;                   //1 means debounced changed
-
-    wait();
-    rowState = scanner.scan(rowEnd);
-    debouncedChanged = debouncer.debounce(rowState, debounced);
-    pressRelease(rowEnd, debouncedChanged);
+    return scanner.scan(rowEnd);
+}
+
+uint8_t Row_IOE::debounce(const uint8_t rowState, uint8_t& debounced)
+{
+    return debouncer.debounce(rowState, debounced);
 }
diff --git a/src/Row_IOE.h b/src/Row_IOE.h
index c9752a4..7c856e9 100644
--- a/src/Row_IOE.h
+++ b/src/Row_IOE.h
@@ -23,6 +23,7 @@ class Row_IOE : public RowBase
         Row_IOE( RowPort& refRowPort, const uint8_t strobePin,
              ColPort& refColPort, Key *const ptrsKeys[])
             : RowBase(ptrsKeys), scanner(refRowPort, strobePin, refColPort) { }
-        virtual void process();
+        uint8_t scan(uint16_t& rowEnd);
+        uint8_t debounce(const uint8_t rowState, uint8_t& debounced);
 };
 #endif
diff --git a/src/Row_uC.cpp b/src/Row_uC.cpp
index 6da513b..a3c7ee7 100644
--- a/src/Row_uC.cpp
+++ b/src/Row_uC.cpp
@@ -1,17 +1,11 @@
 #include "Row_uC.h"
 
-/*
-process() scans the row and calls any newly pressed or released keys.
-*/
-void Row_uC::process()
+uint8_t Row_uC::scan(uint16_t& rowEnd)
 {
-    //these variables are all bitwise, one bit per key
-    uint8_t rowState;                           //1 means pressed, 0 means released
-    uint16_t rowEnd;                            //1 bit marks positioned after last key of row
-    uint8_t debouncedChanged;                   //1 means debounced changed
-
-    wait();
-    rowState = scanner.scan(rowEnd);
-    debouncedChanged = debouncer.debounce(rowState, debounced);
-    pressRelease(rowEnd, debouncedChanged);
+    return scanner.scan(rowEnd);
+}
+
+uint8_t Row_uC::debounce(const uint8_t rowState, uint8_t& debounced)
+{
+    return debouncer.debounce(rowState, debounced);
 }
diff --git a/src/Row_uC.h b/src/Row_uC.h
index 60d1236..3af67be 100644
--- a/src/Row_uC.h
+++ b/src/Row_uC.h
@@ -22,6 +22,7 @@ class Row_uC : public RowBase
         Row_uC(const uint8_t strobePin, const uint8_t readPins[], const uint8_t READ_PIN_COUNT,
                 Key *const ptrsKeys[])
             : RowBase(ptrsKeys), scanner(strobePin, readPins, READ_PIN_COUNT) { }
-        virtual void process();
+        uint8_t scan(uint16_t& rowEnd);
+        uint8_t debounce(const uint8_t rowState, uint8_t& debounced);
 };
 #endif