Create boot.js

apps/backlite/boot.js

@@ -0,0 +1,30 @@
+
+//Set LCD to zero through settings every reboot
+let s = require("Storage").readJSON("setting.json", 1) || {};
+s.brightness = 0; // Set brightness to 70% (value from 0 to 1)
+require("Storage").writeJSON("setting.json", s);
+
+
+let unlockedWithLongPress = false;
+const longPressTime=300; //(ms)
+
+Bangle.on('lock', function(isLocked) {
+  if (!isLocked) {
+    // Just unlocked — give a short delay and check if BTN1 is still pressed
+    setTimeout(() => {
+      if (digitalRead(BTN1)) {
+        unlockedWithLongPress = true;
+        Bangle.setLCDBrightness(0.1);
+        setTimeout(()=>{
+          Bangle.setLCDBrightness(0);
+        },Bangle.getOptions().lcdTimeout);
+      } else {
+        Bangle.setLCDBrightness(0);
+      }
+    }, longPressTime); // Slight delay to allow unlock to settle
+  }
+});
+
+
+
+