diff --git a/ch32v-insert-coin/src/app.rs b/ch32v-insert-coin/src/app.rs
index 482c354..56162b1 100644
--- a/ch32v-insert-coin/src/app.rs
+++ b/ch32v-insert-coin/src/app.rs
@@ -648,6 +648,16 @@ impl App {
     pub fn get_state(&self) -> State {
         self.state
     }
+    pub fn should_wake(&self) -> bool {
+        if self.interfaces.usb.powered() {
+            return true;
+        } else {
+            if self.interfaces.adc_core.get_average() > 421 {
+                return true;
+            }
+        }
+        return false;
+    }
 }
 
 // TODO LIST
diff --git a/ch32v-insert-coin/src/main.rs b/ch32v-insert-coin/src/main.rs
index 0bb8271..8e8a6dc 100644
--- a/ch32v-insert-coin/src/main.rs
+++ b/ch32v-insert-coin/src/main.rs
@@ -526,9 +526,10 @@ fn app_main(mut p: hal::Peripherals) -> ! {
                     }
                     unsafe {
                         #[allow(static_mut_refs)]
-                        if INPUT_FLAGS.sense_coin_flag.active()
+                        if (INPUT_FLAGS.sense_coin_flag.active()
                             || (INPUT_FLAGS.main_btn_flag.active()
-                                && main_btn_input.is_high_immediate())
+                                && main_btn_input.is_high_immediate()))
+                            && app.should_wake()
                         {
                             unsafe {
                                 use hal::pac::Interrupt;