From 2fdbfbdbf6eba23122bbd274a7194bf68c5cd5f8 Mon Sep 17 00:00:00 2001
From: liamcottle <liam@liamcottle.com>
Date: Tue, 12 May 2026 01:06:22 +1200
Subject: [PATCH] turn off 3.3v rail when powering off

---
 variants/lilygo_t_impulse_plus/TImpulsePlusBoard.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/variants/lilygo_t_impulse_plus/TImpulsePlusBoard.h b/variants/lilygo_t_impulse_plus/TImpulsePlusBoard.h
index 3e799bd9e..ea1782cf7 100644
--- a/variants/lilygo_t_impulse_plus/TImpulsePlusBoard.h
+++ b/variants/lilygo_t_impulse_plus/TImpulsePlusBoard.h
@@ -48,6 +48,12 @@ public:
   }
 
   void powerOff() override {
+
+    // turn off 3.3v
+    digitalWrite(RT9080_EN, LOW);
+
+    // power off system
     sd_power_system_off();
+
   }
 };