From bbc26d40d3e5a55a13d81eb286deca501d8d87bc Mon Sep 17 00:00:00 2001
From: Kevin Le <vinhdat82@gmail.com>
Date: Fri, 10 Apr 2026 10:45:26 +0700
Subject: [PATCH] Added Power Saving for NRF52 companions

---
 examples/companion_radio/MyMesh.cpp | 8 ++++++++
 examples/companion_radio/MyMesh.h   | 3 +++
 examples/companion_radio/main.cpp   | 6 ++++++
 3 files changed, 17 insertions(+)

diff --git a/examples/companion_radio/MyMesh.cpp b/examples/companion_radio/MyMesh.cpp
index 60a5a75f..dbc2dd67 100644
--- a/examples/companion_radio/MyMesh.cpp
+++ b/examples/companion_radio/MyMesh.cpp
@@ -2144,3 +2144,11 @@ bool MyMesh::advert() {
     return false;
   }
 }
+
+// To check if there is pending work
+bool MyMesh::hasPendingWork() const {
+#if defined(WITH_BRIDGE)
+  if (bridge.isRunning()) return true; // bridge needs WiFi radio, can't sleep
+#endif
+  return _mgr->getOutboundTotal() > 0;
+}
diff --git a/examples/companion_radio/MyMesh.h b/examples/companion_radio/MyMesh.h
index 3b02f5f6..af5e030b 100644
--- a/examples/companion_radio/MyMesh.h
+++ b/examples/companion_radio/MyMesh.h
@@ -174,6 +174,9 @@ public:
       sensors.setSettingValue("gps_interval", interval_str);
     }
   }
+
+  // To check if there is pending work
+  bool hasPendingWork() const;
 #endif
 
 private:
diff --git a/examples/companion_radio/main.cpp b/examples/companion_radio/main.cpp
index 876dc9c3..0c6aa55f 100644
--- a/examples/companion_radio/main.cpp
+++ b/examples/companion_radio/main.cpp
@@ -229,4 +229,10 @@ void loop() {
   ui_task.loop();
 #endif
   rtc_clock.tick();
+
+  if (!the_mesh.hasPendingWork()) {
+#if defined(NRF52_PLATFORM)
+    board.sleep(0); // nrf ignores seconds param, sleeps whenever possible
+#endif
+  }
 }