diff --git a/flipcontrol_esp32/include/flipdot.h b/flipcontrol_esp32/include/flipdot.h
index c3c6036..244185b 100644
--- a/flipcontrol_esp32/include/flipdot.h
+++ b/flipcontrol_esp32/include/flipdot.h
@@ -35,11 +35,20 @@ D3 - _clear
 
 
 //### Timings ###
+/* These values worked before okay:
 #define MICROS_DRIVEDOTSET 1500 //time dot will be powered for flipping to bright side. in microseconds. 700 sometimes flips too late
-#define MICROS_DRIVEDOTCLEAR 20000 //time dot will be powered for flipping to black. in microseconds. always flips at least a whole column. 10000 is too short
+#define MICROS_DRIVEDOTCLEAR 30000 //time dot will be powered for flipping to black. in microseconds. always flips at least a whole column. 10000 is too short. last value was 20000
 
 #define MICROS_SHIFTDELAY 50/2 //shift register clock (100/2 = 1/(100/1000000) Hz) .at 25/2 nothing is flipping!
 #define MICROS_SHIFT_LATCH 100 //latch high time for 595 (row drivers)
+*/
+
+//Slower values
+#define MICROS_DRIVEDOTSET 5000 //time dot will be powered for flipping to bright side. in microseconds. 700 sometimes flips too late
+#define MICROS_DRIVEDOTCLEAR 30000 //time dot will be powered for flipping to black. in microseconds. always flips at least a whole column. 10000 is too short. last value was 20000
+
+#define MICROS_SHIFTDELAY 100/2 //shift register clock (100/2 = 1/(100/1000000) Hz) .at 25/2 nothing is flipping!
+#define MICROS_SHIFT_LATCH 200 //latch high time for 595 (row drivers)
 
 class Flipdot
 {
diff --git a/flipcontrol_esp32/include/image.h b/flipcontrol_esp32/include/image.h
index f0fc1ed..0dd37b7 100644
--- a/flipcontrol_esp32/include/image.h
+++ b/flipcontrol_esp32/include/image.h
@@ -59,6 +59,11 @@ public:
     void setBufferColumn(uint8_t _colnum, uint16_t _rowdata);
     void setBuffer_random(uint8_t randomness);
 
+    void setBuffer_Image1();
+    void setBuffer_Image2();
+    void setBuffer_Image3();
+    void setBuffer_Image4();
+
     void loop_testDots();
     void loop_drawClearTest();
 
diff --git a/flipcontrol_esp32/src/image.cpp b/flipcontrol_esp32/src/image.cpp
index e14ce8e..68a475e 100644
--- a/flipcontrol_esp32/src/image.cpp
+++ b/flipcontrol_esp32/src/image.cpp
@@ -46,6 +46,336 @@ void Image::setBuffer_solid(bool set)
     flag_updating=true; //make update run
 }
 
+
+void Image::setBuffer_Image1()
+{
+backBuffer[0]=0b0101010101010101;
+backBuffer[1]=0b1010101010101010;
+backBuffer[2]=0b0101010101010101;
+backBuffer[3]=0b1010101010101010;
+backBuffer[4]=0b0101010101010101;
+backBuffer[5]=0b1010101010101010;
+backBuffer[6]=0b0101010101010101;
+backBuffer[7]=0b1010101010101010;
+backBuffer[8]=0b0101010101010101;
+backBuffer[9]=0b1010101010101010;
+backBuffer[10]=0b0101010101010101;
+backBuffer[11]=0b1010101010101010;
+backBuffer[12]=0b0101010101010101;
+backBuffer[13]=0b1010101010101010;
+backBuffer[14]=0b0101010101010101;
+backBuffer[15]=0b1010101010101010;
+backBuffer[16]=0b0101010101010101;
+backBuffer[17]=0b1010101010101010;
+backBuffer[18]=0b0101010101010101;
+backBuffer[19]=0b1010101010101010;
+backBuffer[20]=0b0101010101010101;
+backBuffer[21]=0b1010101010101010;
+backBuffer[22]=0b0101010101010101;
+backBuffer[23]=0b1010101010101010;
+backBuffer[24]=0b0101010101010101;
+backBuffer[25]=0b1010101010101010;
+backBuffer[26]=0b0101010101010101;
+backBuffer[27]=0b1010101010101010;
+backBuffer[28]=0b0101010101010101;
+backBuffer[29]=0b1010101010101010;
+backBuffer[30]=0b0101010101010101;
+backBuffer[31]=0b1010101010101010;
+backBuffer[32]=0b0101010101010101;
+backBuffer[33]=0b1010101010101010;
+backBuffer[34]=0b0101010101010101;
+backBuffer[35]=0b1010101010101010;
+backBuffer[36]=0b0101010101010101;
+backBuffer[37]=0b1010101010101010;
+backBuffer[38]=0b0101010101010101;
+backBuffer[39]=0b1010101010101010;
+backBuffer[40]=0b0101010101010101;
+backBuffer[41]=0b1010101010101010;
+backBuffer[42]=0b0101010101010101;
+backBuffer[43]=0b1010101010101010;
+backBuffer[44]=0b0101010101010101;
+backBuffer[45]=0b1010101010101010;
+backBuffer[46]=0b0101010101010101;
+backBuffer[47]=0b1010101010101010;
+backBuffer[48]=0b0101010101010101;
+backBuffer[49]=0b1010101010101010;
+backBuffer[50]=0b0101010101010101;
+backBuffer[51]=0b1010101010101010;
+backBuffer[52]=0b0101010101010101;
+backBuffer[53]=0b1010101010101010;
+backBuffer[54]=0b0101010101010101;
+backBuffer[55]=0b1010101010101010;
+backBuffer[56]=0b0101010101010101;
+backBuffer[57]=0b1010101010101010;
+backBuffer[58]=0b0101010101010101;
+backBuffer[59]=0b1010101010101010;
+backBuffer[60]=0b0101010101010101;
+backBuffer[61]=0b1010101010101010;
+backBuffer[62]=0b0101010101010101;
+backBuffer[63]=0b1010101010101010;
+backBuffer[64]=0b0101010101010101;
+backBuffer[65]=0b1010101010101010;
+backBuffer[66]=0b0101010101010101;
+backBuffer[67]=0b1010101010101010;
+backBuffer[68]=0b0101010101010101;
+backBuffer[69]=0b1010101010101010;
+backBuffer[70]=0b0101010101010101;
+backBuffer[71]=0b1010101010101010;
+backBuffer[72]=0b0101010101010101;
+backBuffer[73]=0b1010101010101010;
+backBuffer[74]=0b0101010101010101;
+
+    flag_updating=true; //make update run
+}
+
+void Image::setBuffer_Image2()
+{
+backBuffer[0]=0b1010101010101010;
+backBuffer[1]=0b0101010101010101;
+backBuffer[2]=0b1010101010101010;
+backBuffer[3]=0b0101010101010101;
+backBuffer[4]=0b1010101010101010;
+backBuffer[5]=0b0101010101010101;
+backBuffer[6]=0b1010101010101010;
+backBuffer[7]=0b0101010101010101;
+backBuffer[8]=0b1010101010101010;
+backBuffer[9]=0b0101010101010101;
+backBuffer[10]=0b1010101010101010;
+backBuffer[11]=0b0101010101010101;
+backBuffer[12]=0b1010101010101010;
+backBuffer[13]=0b0101010101010101;
+backBuffer[14]=0b1010101010101010;
+backBuffer[15]=0b0101010101010101;
+backBuffer[16]=0b1010101010101010;
+backBuffer[17]=0b0101010101010101;
+backBuffer[18]=0b1010101010101010;
+backBuffer[19]=0b0101010101010101;
+backBuffer[20]=0b1010101010101010;
+backBuffer[21]=0b0101010101010101;
+backBuffer[22]=0b1010101010101010;
+backBuffer[23]=0b0101010101010101;
+backBuffer[24]=0b1010101010101010;
+backBuffer[25]=0b0101010101010101;
+backBuffer[26]=0b1010101010101010;
+backBuffer[27]=0b0101010101010101;
+backBuffer[28]=0b1010101010101010;
+backBuffer[29]=0b0101010101010101;
+backBuffer[30]=0b1010101010101010;
+backBuffer[31]=0b0101010101010101;
+backBuffer[32]=0b1010101010101010;
+backBuffer[33]=0b0101010101010101;
+backBuffer[34]=0b1010101010101010;
+backBuffer[35]=0b0101010101010101;
+backBuffer[36]=0b1010101010101010;
+backBuffer[37]=0b0101010101010101;
+backBuffer[38]=0b1010101010101010;
+backBuffer[39]=0b0101010101010101;
+backBuffer[40]=0b1010101010101010;
+backBuffer[41]=0b0101010101010101;
+backBuffer[42]=0b1010101010101010;
+backBuffer[43]=0b0101010101010101;
+backBuffer[44]=0b1010101010101010;
+backBuffer[45]=0b0101010101010101;
+backBuffer[46]=0b1010101010101010;
+backBuffer[47]=0b0101010101010101;
+backBuffer[48]=0b1010101010101010;
+backBuffer[49]=0b0101010101010101;
+backBuffer[50]=0b1010101010101010;
+backBuffer[51]=0b0101010101010101;
+backBuffer[52]=0b1010101010101010;
+backBuffer[53]=0b0101010101010101;
+backBuffer[54]=0b1010101010101010;
+backBuffer[55]=0b0101010101010101;
+backBuffer[56]=0b1010101010101010;
+backBuffer[57]=0b0101010101010101;
+backBuffer[58]=0b1010101010101010;
+backBuffer[59]=0b0101010101010101;
+backBuffer[60]=0b1010101010101010;
+backBuffer[61]=0b0101010101010101;
+backBuffer[62]=0b1010101010101010;
+backBuffer[63]=0b0101010101010101;
+backBuffer[64]=0b1010101010101010;
+backBuffer[65]=0b0101010101010101;
+backBuffer[66]=0b1010101010101010;
+backBuffer[67]=0b0101010101010101;
+backBuffer[68]=0b1010101010101010;
+backBuffer[69]=0b0101010101010101;
+backBuffer[70]=0b1010101010101010;
+backBuffer[71]=0b0101010101010101;
+backBuffer[72]=0b1010101010101010;
+backBuffer[73]=0b0101010101010101;
+backBuffer[74]=0b1010101010101010;
+
+flag_updating=true; //make update run
+}
+
+
+void Image::setBuffer_Image3()
+{
+    backBuffer[0]=0b1010101010101010;
+backBuffer[1]=0b1010101010101010;
+backBuffer[2]=0b1010101010101010;
+backBuffer[3]=0b1010101010101010;
+backBuffer[4]=0b1010101010101010;
+backBuffer[5]=0b1010101010101010;
+backBuffer[6]=0b1010101010101010;
+backBuffer[7]=0b1010101010101010;
+backBuffer[8]=0b1010101010101010;
+backBuffer[9]=0b1010101010101010;
+backBuffer[10]=0b1010101010101010;
+backBuffer[11]=0b1010101010101010;
+backBuffer[12]=0b1010101010101010;
+backBuffer[13]=0b1010101010101010;
+backBuffer[14]=0b1010101010101010;
+backBuffer[15]=0b1010101010101010;
+backBuffer[16]=0b1010101010101010;
+backBuffer[17]=0b1010101010101010;
+backBuffer[18]=0b1010101010101010;
+backBuffer[19]=0b1010101010101010;
+backBuffer[20]=0b1010101010101010;
+backBuffer[21]=0b1010101010101010;
+backBuffer[22]=0b1010101010101010;
+backBuffer[23]=0b1010101010101010;
+backBuffer[24]=0b1010101010101010;
+backBuffer[25]=0b1010101010101010;
+backBuffer[26]=0b1010101010101010;
+backBuffer[27]=0b1010101010101010;
+backBuffer[28]=0b1010101010101010;
+backBuffer[29]=0b1010101010101010;
+backBuffer[30]=0b1010101010101010;
+backBuffer[31]=0b1010101010101010;
+backBuffer[32]=0b1010101010101010;
+backBuffer[33]=0b1010101010101010;
+backBuffer[34]=0b1010101010101010;
+backBuffer[35]=0b1010101010101010;
+backBuffer[36]=0b1010101010101010;
+backBuffer[37]=0b1010101010101010;
+backBuffer[38]=0b1010101010101010;
+backBuffer[39]=0b1010101010101010;
+backBuffer[40]=0b1010101010101010;
+backBuffer[41]=0b1010101010101010;
+backBuffer[42]=0b1010101010101010;
+backBuffer[43]=0b1010101010101010;
+backBuffer[44]=0b1010101010101010;
+backBuffer[45]=0b1010101010101010;
+backBuffer[46]=0b1010101010101010;
+backBuffer[47]=0b1010101010101010;
+backBuffer[48]=0b1010101010101010;
+backBuffer[49]=0b1010101010101010;
+backBuffer[50]=0b1010101010101010;
+backBuffer[51]=0b1010101010101010;
+backBuffer[52]=0b1010101010101010;
+backBuffer[53]=0b1010101010101010;
+backBuffer[54]=0b1010101010101010;
+backBuffer[55]=0b1010101010101010;
+backBuffer[56]=0b1010101010101010;
+backBuffer[57]=0b1010101010101010;
+backBuffer[58]=0b1010101010101010;
+backBuffer[59]=0b1010101010101010;
+backBuffer[60]=0b1010101010101010;
+backBuffer[61]=0b1010101010101010;
+backBuffer[62]=0b1010101010101010;
+backBuffer[63]=0b1010101010101010;
+backBuffer[64]=0b1010101010101010;
+backBuffer[65]=0b1010101010101010;
+backBuffer[66]=0b1010101010101010;
+backBuffer[67]=0b1010101010101010;
+backBuffer[68]=0b1010101010101010;
+backBuffer[69]=0b1010101010101010;
+backBuffer[70]=0b1010101010101010;
+backBuffer[71]=0b1010101010101010;
+backBuffer[72]=0b1010101010101010;
+backBuffer[73]=0b1010101010101010;
+backBuffer[74]=0b1010101010101010;
+
+
+    flag_updating=true; //make update run
+}
+
+
+
+void Image::setBuffer_Image4()
+{
+    backBuffer[0]=0b0101010101010101;
+backBuffer[1]=0b0101010101010101;
+backBuffer[2]=0b0101010101010101;
+backBuffer[3]=0b0101010101010101;
+backBuffer[4]=0b0101010101010101;
+backBuffer[5]=0b0101010101010101;
+backBuffer[6]=0b0101010101010101;
+backBuffer[7]=0b0101010101010101;
+backBuffer[8]=0b0101010101010101;
+backBuffer[9]=0b0101010101010101;
+backBuffer[10]=0b0101010101010101;
+backBuffer[11]=0b0101010101010101;
+backBuffer[12]=0b0101010101010101;
+backBuffer[13]=0b0101010101010101;
+backBuffer[14]=0b0101010101010101;
+backBuffer[15]=0b0101010101010101;
+backBuffer[16]=0b0101010101010101;
+backBuffer[17]=0b0101010101010101;
+backBuffer[18]=0b0101010101010101;
+backBuffer[19]=0b0101010101010101;
+backBuffer[20]=0b0101010101010101;
+backBuffer[21]=0b0101010101010101;
+backBuffer[22]=0b0101010101010101;
+backBuffer[23]=0b0101010101010101;
+backBuffer[24]=0b0101010101010101;
+backBuffer[25]=0b0101010101010101;
+backBuffer[26]=0b0101010101010101;
+backBuffer[27]=0b0101010101010101;
+backBuffer[28]=0b0101010101010101;
+backBuffer[29]=0b0101010101010101;
+backBuffer[30]=0b0101010101010101;
+backBuffer[31]=0b0101010101010101;
+backBuffer[32]=0b0101010101010101;
+backBuffer[33]=0b0101010101010101;
+backBuffer[34]=0b0101010101010101;
+backBuffer[35]=0b0101010101010101;
+backBuffer[36]=0b0101010101010101;
+backBuffer[37]=0b0101010101010101;
+backBuffer[38]=0b0101010101010101;
+backBuffer[39]=0b0101010101010101;
+backBuffer[40]=0b0101010101010101;
+backBuffer[41]=0b0101010101010101;
+backBuffer[42]=0b0101010101010101;
+backBuffer[43]=0b0101010101010101;
+backBuffer[44]=0b0101010101010101;
+backBuffer[45]=0b0101010101010101;
+backBuffer[46]=0b0101010101010101;
+backBuffer[47]=0b0101010101010101;
+backBuffer[48]=0b0101010101010101;
+backBuffer[49]=0b0101010101010101;
+backBuffer[50]=0b0101010101010101;
+backBuffer[51]=0b0101010101010101;
+backBuffer[52]=0b0101010101010101;
+backBuffer[53]=0b0101010101010101;
+backBuffer[54]=0b0101010101010101;
+backBuffer[55]=0b0101010101010101;
+backBuffer[56]=0b0101010101010101;
+backBuffer[57]=0b0101010101010101;
+backBuffer[58]=0b0101010101010101;
+backBuffer[59]=0b0101010101010101;
+backBuffer[60]=0b0101010101010101;
+backBuffer[61]=0b0101010101010101;
+backBuffer[62]=0b0101010101010101;
+backBuffer[63]=0b0101010101010101;
+backBuffer[64]=0b0101010101010101;
+backBuffer[65]=0b0101010101010101;
+backBuffer[66]=0b0101010101010101;
+backBuffer[67]=0b0101010101010101;
+backBuffer[68]=0b0101010101010101;
+backBuffer[69]=0b0101010101010101;
+backBuffer[70]=0b0101010101010101;
+backBuffer[71]=0b0101010101010101;
+backBuffer[72]=0b0101010101010101;
+backBuffer[73]=0b0101010101010101;
+backBuffer[74]=0b0101010101010101;
+
+    flag_updating=true; //make update run
+}
+
+
 void Image::setBufferColumn(uint8_t _colnum, uint16_t _rowdata)
 {
     if (_colnum>=COLUMNS) {
diff --git a/flipcontrol_esp32/src/main.cpp b/flipcontrol_esp32/src/main.cpp
index a3230cb..e15921d 100644
--- a/flipcontrol_esp32/src/main.cpp
+++ b/flipcontrol_esp32/src/main.cpp
@@ -19,6 +19,8 @@ void setup() {
     flip.init();
 
     Serial.begin(115200);
+    flip.setBuffer_solid(0);
+
 }
 
 
@@ -27,11 +29,39 @@ void loop() {
     
     static unsigned long last_change=0;
     static bool color=0;
-    if (loopmillis-last_change >= 1000) 
+
+    static uint8_t image=0;
+    if (loopmillis-last_change >= 1000*10) 
     {
-        //Serial.print("Change to Solid color ="); Serial.println(color);
-        //flip.setBuffer_solid(color);
-        //color=1-color;
+        /*
+        Serial.print("Change to Solid color ="); Serial.println(color);
+        
+        flip.setBuffer_solid(color);
+        color=1-color;
+        
+        */
+
+
+        switch (image){
+            case 0:
+                flip.setBuffer_Image1();
+                break;
+            case 1:
+                flip.setBuffer_Image2();
+                break;
+            case 2:
+                flip.setBuffer_Image3();
+                break;
+            case 3:
+                flip.setBuffer_Image4();
+                break;
+
+        }
+
+        image++;
+        image%=4;
+        
+
 
         /*
         uint8_t _randomvalue=random(128);
@@ -39,12 +69,13 @@ void loop() {
         Serial.println(_randomvalue);
         flip.setBuffer_random(_randomvalue);
         */
-
+       /*
         for (uint8_t _x=0;_x<COLUMNS;_x++) {
             uint8_t _y=(sin( loopmillis/100000.0 + _x/5.0 )/2+0.5)*15+0.5;
             uint16_t _row=pow(2, _y);
             flip.setBufferColumn(_x,_row);
         }
+        */
     
         
 
@@ -52,7 +83,8 @@ void loop() {
     }
 
 
-    UpdateReturn result=flip.updateByColumn(true,true,true); //0=not finished, 1=finished
+    //UpdateReturn result=flip.updateByColumn(true,true,true); //0=not finished, 1=finished
+    UpdateReturn result=flip.updateByColumn(true,false,false); //0=not finished, 1=finished
     if (result == finished) //just finished
     {
         unsigned long duration=millis()-last_change;