Add some tips

_locales/en/messages.json

@@ -530,7 +530,7 @@
         "message": "Configure via the Race Transponder tab after enabling."
     },
     "featureSUPEREXPO_RATES": {
-        "message": "Rate value adds instead of rate also Super Expo. Mid stick stays same. Rc rate is always liniear"
+        "message": "Rate value adds instead of rate also Super Expo. Mid stick stays same. Rc rate is always linear"
     },
     "featureAIRMODE": {
         "message": "Airmode always enabled!"
@@ -1701,7 +1701,19 @@
     },
       "PIDTip": {
         "message": "<b>Derivative from Error</b> provides more direct stick response and is mostly prefered for Racing.<br><br><b>Derivative from Measurement</b> provides smoother stick response what is more usefull for freestyling"
-    }  
+    },
+      "PIDMathTip": {
+        "message": "<b>Float vs Integer:</b> PID scaling and PID logic is exactly the same. No retune needed. F1 boards have no onboard FPU and floating point math increases CPU load and integer math will improve performance, but float math might gain slightly more precision."
+    },
+      "FilterTip": {
+        "message": "<b>Gyro Soft Filter:</b> Lowpass filter for gyro. Use lower value for more filtering.<br><b>D Term Filter:</b> Lowpass filter for Dterm. Can affect D tuning. Use lower value for more filtering. <br><b>Yaw Filter:</b> Filters yaw output. It can help on setups with noisy yaw axis."
+    },
+      "PIDTuningTip": {
+        "message": "<b>Proportional:</b> You will notice a very strong resistant force to any attempts to move the MultiRotor<br><b>Integral:</b> Increase the ability to hold overall initial position and reduce drift, but also increase the delay in returning to initial position.<br><b>Derivative:</b> Improves the speed at which deviations are recovered, but increases noise<br><b>Rates and Expo</b>: Determine your stick feel based on these parameters. Use the graph and live 3D model to find your favourite rate setting"
+    },
+      "pidTuningRatesTip": {
+        "message": "Play with the rates and see how those affect the stick curve"
+    }
     
 
     

tabs/pid_tuning.html

@@ -11,6 +11,7 @@
         </div>
         <div class="cf_column twothird">
             <div class="controller single-field">
+            <div class="helpicon cf_tip" i18n_title="PIDMathTip" style="margin-top: 5px;"></div>
                 <div class="head" i18n="pidTuningControllerHead"></div>
                 <div class="bottomarea">
                     <select name="controller">
@@ -41,6 +42,7 @@
             <div class="clear-both"></div>
             <div class="cf_column twothird">
                 <div class="gui_box grey">
+                  <div class="helpicon cf_tip" i18n_title="PIDTuningTip"></div>
                     <table class="pid_titlebar">
                         <tr>
                             <th class="name" i18n="pidTuningName"></th>
@@ -201,6 +203,7 @@
                     </table>
                 </div>
                 <div id="pid_filter" class="gui_box grey topspacer pid_tuning">
+                    <div class="helpicon cf_tip" i18n_title="FilterTip"></div>
                     <table class="pid_titlebar">
                         <tr>
                             <th class="third" i18n="pidTuningGyro"></th>
@@ -251,6 +254,7 @@
                         <tbody>
                             <tr>
                                 <td>
+                                 <div class="helpicon cf_tip" i18n_title="pidTuningRatesTip"></div>
                                     <div class="spacer" style="margin-top: 10px; margin-bottom: 10px;">
                                         <div class="rate_curve">
                                             <canvas height="120px" style="width: 100%; height: 100%"></canvas>