diff --git a/ConfigFile.cpp b/ConfigFile.cpp
index 32c9726..c4fb891 100644
--- a/ConfigFile.cpp
+++ b/ConfigFile.cpp
@@ -6,9 +6,9 @@
 
 extern Preferences pref;
 
-#define SHADE_HDR_VER 7
+#define SHADE_HDR_VER 8
 #define SHADE_HDR_SIZE 16
-#define SHADE_REC_SIZE 232
+#define SHADE_REC_SIZE 236
 
 bool ConfigFile::begin(const char* filename, bool readOnly) {
   this->file = LittleFS.open(filename, readOnly ? "r" : "w");
@@ -58,9 +58,7 @@ bool ConfigFile::seekRecordByIndex(uint16_t ndx) {
   if(!this->file) {
     return false;
   }
-  if(((this->header.recordSize * ndx) + this->header.length) > this->file.size()) {
-    return false;
-  }
+  if(((this->header.recordSize * ndx) + this->header.length) > this->file.size()) return false;
   return true;
 }
 bool ConfigFile::readString(char *buff, size_t len) {
@@ -307,6 +305,7 @@ bool ShadeConfigFile::loadFile(SomfyShadeController *s, const char *filename) {
       if(this->header.version < 5 && j == 4) break; // Prior to version 5 we only supported 5 linked remotes.
     }
     shade->lastRollingCode = this->readUInt16(0);
+    if(this->header.version > 7) shade->flags = this->readUInt8(0);
     if(shade->getRemoteAddress() != 0) shade->lastRollingCode = max(pref.getUShort(shade->getRemotePrefId(), shade->lastRollingCode), shade->lastRollingCode);
     if(this->header.version < 4)
       shade->myPos = static_cast<float>(this->readUInt8(255));
@@ -361,6 +360,7 @@ bool ShadeConfigFile::writeShadeRecord(SomfyShade *shade) {
     this->writeUInt32(rem->getRemoteAddress());
   }
   this->writeUInt16(shade->lastRollingCode);
+  this->writeUInt8(shade->flags);
   this->writeFloat(shade->myPos, 5);
   this->writeFloat(shade->myTiltPos, 5);
   this->writeFloat(shade->currentPos, 5);
@@ -372,6 +372,7 @@ bool ShadeConfigFile::getAppVersion(appver_t &ver) {
   char app[15];
   if(!LittleFS.exists("/appversion")) return false;
   File f = LittleFS.open("/appversion", "r");
+  size_t fsize = f.size();
   memset(app, 0x00, sizeof(app));
   f.read((uint8_t *)app, sizeof(app) - 1);
   f.close();
diff --git a/SomfyController.ino.esp32.bin b/SomfyController.ino.esp32.bin
index cc5c45d..605c853 100644
Binary files a/SomfyController.ino.esp32.bin and b/SomfyController.ino.esp32.bin differ
diff --git a/SomfyController.littlefs.bin b/SomfyController.littlefs.bin
index 6f560e7..25a5187 100644
Binary files a/SomfyController.littlefs.bin and b/SomfyController.littlefs.bin differ
diff --git a/data/index.html b/data/index.html
index 3170297..4fa1201 100644
--- a/data/index.html
+++ b/data/index.html
@@ -378,6 +378,15 @@
                             </div>
                             <div class="field-group" style="display:inline-block;width:auto;min-width:247px;margin-top:-20px;vertical-align:top;">
                                 <div class="field-group">
+                                    <input id="slidFrequency" name="frequency" type="range" min="433330" max="433499" step="1" style="width:100%;" oninput="somfy.frequencyChanged(this);" />
+                                    <label for="slidRxBandwidth" style="display:block;font-size:1em;margin-top:0px;margin-left:7px;">
+                                        <span>Base Frequency </span>
+                                        <span style="float:right;display:inline-block;margin-right:7px;">
+                                            <span id="spanFrequency" style="color:black;"></span><span>MHz</span>
+                                        </span>
+                                    </label>
+                                </div>
+                                <div class="field-group" style="margin-top:-10px;">
                                     <input id="slidRxBandwidth" name="rxBandwidth" type="range" min="5803" max="81250" step="1" style="width:100%;" oninput="somfy.rxBandwidthChanged(this);" />
                                     <label for="slidRxBandwidth" style="display:block;font-size:1em;margin-top:0px;margin-left:7px;">
                                         <span>RX Bandwidth </span>
diff --git a/data/index.js b/data/index.js
index 318071e..8d86368 100644
--- a/data/index.js
+++ b/data/index.js
@@ -928,6 +928,8 @@ class Somfy {
                 document.getElementById('selRadioType').value = somfy.transceiver.config.type;
                 document.getElementById('selRadioProto').value = somfy.transceiver.config.proto;
                 document.getElementById('spanMaxShades').innerText = somfy.maxShades;
+                document.getElementById('spanFrequency').innerText = (Math.round(somfy.transceiver.config.frequency * 1000) / 1000).fmt('#,##0.000');
+                document.getElementById('slidFrequency').value = Math.round(somfy.transceiver.config.frequency * 1000);
                 document.getElementById('spanRxBandwidth').innerText = (Math.round(somfy.transceiver.config.rxBandwidth * 100) / 100).fmt('#,##0.00');
                 document.getElementById('slidRxBandwidth').value = Math.round(somfy.transceiver.config.rxBandwidth * 100);
                 document.getElementById('spanTxPower').innerText = somfy.transceiver.config.txPower;
@@ -971,6 +973,7 @@ class Somfy {
             MISOPin: getIntValue('selTransMISOPin'),
             TXPin: getIntValue('selTransTXPin'),
             RXPin: getIntValue('selTransRXPin'),
+            frequency: (Math.round(parseFloat(document.getElementById('spanFrequency').innerText) * 1000)) / 1000,
             rxBandwidth: (Math.round(parseFloat(document.getElementById('spanRxBandwidth').innerText) * 100)) / 100,
             txPower: parseInt(document.getElementById('spanTxPower').innerText, 10),
             deviation: (Math.round(parseFloat(document.getElementById('spanDeviation').innerText) * 100)) / 100
@@ -1897,6 +1900,9 @@ class Somfy {
     rxBandwidthChanged(el) {
         document.getElementById('spanRxBandwidth').innerText = (el.value / 100).fmt('#,##0.00');
     };
+    frequencyChanged(el) {
+        document.getElementById('spanFrequency').innerText = (el.value / 1000).fmt('#,##0.000');
+    }
     txPowerChanged(el) {
         console.log(el.value);
         let lvls = [-30, -20, -15, -10, -6, 0, 5, 7, 10, 11, 12];