update uittasks to enable keyboard pulse light notification

examples/companion_radio/NodePrefs.h

@@ -29,4 +29,5 @@ struct NodePrefs {  // persisted to file
   uint32_t gps_interval;     // GPS read interval in seconds
   uint8_t autoadd_config;    // bitmask for auto-add contacts config
   int8_t  utc_offset_hours;  // UTC offset in hours (-12 to +14), default 0
+  uint8_t kb_flash_notify;   // Keyboard backlight flash on new message (0=off, 1=on)
 };

examples/companion_radio/ui-new/Settingsscreen.h

@@ -55,6 +55,7 @@ enum SettingsRowType : uint8_t {
   ROW_CR,             // Coding rate (5-8)
   ROW_TX_POWER,       // TX power (1-20 dBm)
   ROW_UTC_OFFSET,     // UTC offset (-12 to +14)
+  ROW_MSG_NOTIFY,     // Keyboard flash on new msg toggle
   ROW_CH_HEADER,      // "--- Channels ---" separator
   ROW_CHANNEL,        // A channel entry (dynamic, index stored separately)
   ROW_ADD_CHANNEL,    // "+ Add Hashtag Channel"
@@ -126,6 +127,7 @@ private:
     addRow(ROW_CR);
     addRow(ROW_TX_POWER);
     addRow(ROW_UTC_OFFSET);
+    addRow(ROW_MSG_NOTIFY);
     addRow(ROW_CH_HEADER);
 
     // Enumerate current channels
@@ -465,6 +467,12 @@ public:
           display.print(tmp);
           break;
 
+        case ROW_MSG_NOTIFY:
+          snprintf(tmp, sizeof(tmp), "Msg Flash: %s",
+                   _prefs->kb_flash_notify ? "ON" : "OFF");
+          display.print(tmp);
+          break;
+
         case ROW_CH_HEADER:
           display.setColor(DisplayDriver::YELLOW);
           display.print("--- Channels ---");
@@ -824,6 +832,12 @@ public:
         case ROW_UTC_OFFSET:
           startEditInt(_prefs->utc_offset_hours);
           break;
+        case ROW_MSG_NOTIFY:
+          _prefs->kb_flash_notify = _prefs->kb_flash_notify ? 0 : 1;
+          the_mesh.savePrefs();
+          Serial.printf("Settings: Msg flash notify = %s\n",
+                        _prefs->kb_flash_notify ? "ON" : "OFF");
+          break;
         case ROW_ADD_CHANNEL:
           startEditText("");
           break;

examples/companion_radio/ui-new/UITask.cpp

@@ -119,7 +119,7 @@ class HomeScreen : public UIScreen {
 void renderBatteryIndicator(DisplayDriver& display, uint16_t batteryMilliVolts, int* outIconX = nullptr) {
     uint8_t batteryPercentage = 0;
 #if HAS_BQ27220
-    // Use fuel gauge SOC directly — accurate across the full discharge curve
+    // Use fuel gauge SOC directly — accurate across the full discharge curve
     batteryPercentage = board.getBatteryPercent();
 #else
     // Fallback: voltage-based linear estimation for boards without fuel gauge
@@ -413,7 +413,7 @@ public:
         display.drawTextRightAlign(display.width()-1, y, buf);
         y = y + 12;
 
-        // NMEA sentence counter — confirms baud rate and data flow
+        // NMEA sentence counter — confirms baud rate and data flow
         display.drawTextLeftAlign(0, y, "sentences");
         if (gpsDuty.isHardwareOn()) {
           uint16_t sps = gpsStream.getSentencesPerSec();
@@ -825,6 +825,12 @@ void UITask::begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* no
   vibration.begin();
 #endif
 
+  // Keyboard backlight for message flash notifications
+#ifdef KB_BL_PIN
+  pinMode(KB_BL_PIN, OUTPUT);
+  digitalWrite(KB_BL_PIN, LOW);
+#endif
+
   ui_started_at = millis();
   _alert_expiry = 0;
 
@@ -879,7 +885,7 @@ switch(t){
 
 void UITask::msgRead(int msgcount) {
   _msgcount = msgcount;
-  if (msgcount == 0 && curr == msg_preview) {
+  if (msgcount == 0) {
     gotoHomeScreen();
   }
 }
@@ -908,12 +914,9 @@ void UITask::newMsg(uint8_t path_len, const char* from_name, const char* text, i
 #if defined(LilyGo_TDeck_Pro)
   // T-Deck Pro: Don't interrupt user with popup - just show brief notification
   // Messages are stored in channel history, accessible via 'M' key
-  // Suppress alert entirely on admin screen - it needs focused interaction
-  if (!isOnRepeaterAdmin()) {
-    char alertBuf[40];
-    snprintf(alertBuf, sizeof(alertBuf), "New: %s", from_name);
-    showAlert(alertBuf, 2000);
-  }
+  char alertBuf[40];
+  snprintf(alertBuf, sizeof(alertBuf), "New: %s", from_name);
+  showAlert(alertBuf, 2000);
 #else
   // Other devices: Show full preview screen (legacy behavior)
   setCurrScreen(msg_preview);
@@ -928,6 +931,14 @@ void UITask::newMsg(uint8_t path_len, const char* from_name, const char* text, i
     _next_refresh = 100;  // trigger refresh
     }
   }
+
+  // Keyboard flash notification
+#ifdef KB_BL_PIN
+  if (_node_prefs->kb_flash_notify) {
+    digitalWrite(KB_BL_PIN, HIGH);
+    _kb_flash_off_at = millis() + 200;  // 200ms flash
+  }
+#endif
 }
 
 void UITask::userLedHandler() {
@@ -1063,6 +1074,14 @@ void UITask::loop() {
 
   userLedHandler();
 
+  // Turn off keyboard flash after timeout
+#ifdef KB_BL_PIN
+  if (_kb_flash_off_at && millis() >= _kb_flash_off_at) {
+    digitalWrite(KB_BL_PIN, LOW);
+    _kb_flash_off_at = 0;
+  }
+#endif
+
 #ifdef PIN_BUZZER
   if (buzzer.isPlaying())  buzzer.loop();
 #endif
@@ -1173,13 +1192,13 @@ void UITask::toggleGPS() {
 
     if (_sensors != NULL) {
       if (_node_prefs->gps_enabled) {
-        // Disable GPS — cut hardware power
+        // Disable GPS — cut hardware power
         _sensors->setSettingValue("gps", "0");
         _node_prefs->gps_enabled = 0;
         gpsDuty.disable();
         notify(UIEventType::ack);
       } else {
-        // Enable GPS — start duty cycle
+        // Enable GPS — start duty cycle
         _sensors->setSettingValue("gps", "1");
         _node_prefs->gps_enabled = 1;
         gpsDuty.enable();

examples/companion_radio/ui-new/UITask.h

@@ -32,6 +32,7 @@ class UITask : public AbstractUITask {
   GenericVibration vibration;
 #endif
   unsigned long _next_refresh, _auto_off;
+  unsigned long _kb_flash_off_at;          // Keyboard flash turn-off timer
   NodePrefs* _node_prefs;
   char _alert[80];
   unsigned long _alert_expiry;
@@ -74,6 +75,7 @@ public:
 
   UITask(mesh::MainBoard* board, BaseSerialInterface* serial) : AbstractUITask(board, serial), _display(NULL), _sensors(NULL) {
     next_batt_chck = _next_refresh = 0;
+    _kb_flash_off_at = 0;
     ui_started_at = 0;
     curr = NULL;
   }