From c38aff7e521c88805cde46d1ec176a87992beca6 Mon Sep 17 00:00:00 2001
From: Jonathan Bennett <jbennett@incomsystems.biz>
Date: Mon, 19 Jan 2026 15:39:24 -0600
Subject: [PATCH] Add interrupt for external charge detection (#9332)

Tested on Thinknode m4, m6, and T1000-e
---
 src/Power.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Power.cpp b/src/Power.cpp
index e320f0557..cec881f83 100644
--- a/src/Power.cpp
+++ b/src/Power.cpp
@@ -723,6 +723,16 @@ bool Power::setup()
             runASAP = true;
         },
         CHANGE);
+#endif
+#ifdef EXT_CHRG_DETECT
+    attachInterrupt(
+        EXT_CHRG_DETECT,
+        []() {
+            power->setIntervalFromNow(0);
+            runASAP = true;
+            BaseType_t higherWake = 0;
+        },
+        CHANGE);
 #endif
     enabled = found;
     low_voltage_counter = 0;