Added panel rotation switching based on switch state change, not switch position

MinimOSD_Extra_Plane_Pre_release_Beta/OSD_Panels.ino

@@ -10,7 +10,7 @@ void startPanels(){
 void panLogo(){
     osd.setPanel(5, 5);
     osd.openPanel();
-    osd.printf_P(PSTR("MinimOSD-Extra 2.4|Plane r805"));
+    osd.printf_P(PSTR("MinimOSD-Extra 2.4|Plane r807"));
     osd.closePanel();
 }
 
@@ -486,13 +486,29 @@ void panOff(){
           panel = npanels; //off panel
         }
       }
-      //Rotation switch
-      else{
-        if (ch_raw > 1200)
-          if (osd_switch_time + 1000 < millis()){
-            rotatePanel = 1;
-            osd_switch_time = millis();
-        }
+      // Rotation switch
+      else {
+	// Switch changed from its last position
+	if (abs (ch_raw - ch_raw_prev1) > 100) {
+	  // but is the same than 2 positions ago
+	  if (abs (ch_raw - ch_raw_prev2) < 100) {
+	    osd.closePanel();
+	    // and it's been less than 1 sec since the position switch and back
+	    if (osd_switch_time + 1000 > millis()) {
+	      // then rotate
+	      rotatePanel = 1;
+	    }
+	    // stop continuous rotation, forcing a switch flip to restart the process
+	    // or if the flip didn't happen because it happened too slowly, reset too.
+	    ch_raw_prev2 = 0;
+	  } else {
+	    osd_switch_time = millis();
+	    // If position changed and is different from what it was 2 positions ago
+	    // record the new state
+	    ch_raw_prev2 = ch_raw_prev1;
+	    ch_raw_prev1 = ch_raw;
+	  }
+	}
       }    
     }
     if(rotatePanel == 1){
@@ -703,7 +719,7 @@ void panWarn(int first_col, int first_line){
 //              }
             rotation++;
 
-          // Auto switch decesion
+          // Auto switch decision
           if (warning[0] == 1 && panel_auto_switch < 3){
           canswitch = 0;  
           }else if (ch_raw < 1200) {

MinimOSD_Extra_Plane_Pre_release_Beta/OSD_Vars.h

@@ -35,6 +35,9 @@ static uint8_t      panel_auto_switch=0;
 static bool         ma = 0;
 static bool         osd_clear = 0;
 static uint16_t     ch_raw = 0;
+// keep track of whether the channel rotation switch moved from its last position and back
+static uint16_t     ch_raw_prev1 = 0;
+static uint16_t     ch_raw_prev2 = 0;
 //static uint16_t     chan1_raw = 0;
 //static uint16_t     chan2_raw = 0;
 //static uint16_t     chan3_raw = 0;

MinimOSD_Extra_Plane_Pre_release_Beta/README.txt

@@ -0,0 +1,37 @@
+Build
+-----
+1) copy librariesOK/AP_Common AP_Math FastSerial GCS_MAVLink to your
+   arduino library directory
+2) get an old version of the arduino IDE (1.0.2 and 1.0.6 worked ok,
+   1.5.8 did not), and run it _after_ you've copied the libraries in the
+   right place (arduino doesn't rescan after startup)
+3) Select board Arduino Nano/ATmega328
+4) build and upload
+
+For this to work well (it can still work ok-ish without), it's better to set SR1_RC_CHAN 5 
+(although it can work with the default of 2, it's just more picky about timing). 
+If your OSD board is plugged into serial2 instead of serial2, then change SR2 instead.
+
+Changelog
+---------
+R807 - 2015/12/19 - Marc MERLIN <[email protected]>
+--------------------------------------------------------------------------------
+Previous rotation switch didn't quite work as well as I was hoping. This new
+one will rotate OSD if you flip to any other position more than 200ms away from
+the current one, and come back within less than 1 second.
+This should work with all switches and positions and allows you to use
+another switch and activate a function you don't want, but only for
+a fraction for a second, come back, and generate an OSD flip in the
+process.
+
+Binary sketch size: 30,718 bytes (of a 30,720 byte maximum) (pfew :) ) 
+
+
+R806 - 2015/12/13 - Marc MERLIN <[email protected]>
+--------------------------------------------------------------------------------
+Rotation switching only rotates when switch changes states between low/mid/high.
+This allows reusing a switch that has another function for OSD rotation.
+You can rotate the OSD by flipping the switch to any other state and leaving it
+there or coming back to the original location within 2 seconds.
+
+Binary sketch size: 30,656 bytes (of a 30,720 byte maximum)

README.md

@@ -0,0 +1,11 @@
+# MinimOSD-Extra
+
+MinimOSD_Extra_Plane_Pre_release_Beta was improved, please see
+MinimOSD_Extra_Plane_Pre_release_Beta/README.txt
+for changelog and build instructions
+
+Prebuilt binary for plane: Released/FW & Char/MinimOSD_Extra_Plane_R8??.hex
+
+For this to work well (it can still work ok-ish without), it's better to set SR1_RC_CHAN 5 
+(although it can work with the default of 2, it's just more picky about timing). 
+If your OSD board is plugged into serial2 instead of serial2, then change SR2 instead.