From 0c1cf6d0a9e6c07e431fcdd1ae13a4c5c5ae29c1 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 16 Sep 2026 03:32:27 -0500
Subject: [PATCH] [template] Use a user provided default constructor for
 TemplateBinarySensor (#19128)

---
 .../components/template/binary_sensor/template_binary_sensor.h  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/esphome/components/template/binary_sensor/template_binary_sensor.h b/esphome/components/template/binary_sensor/template_binary_sensor.h
index c78a95e0e36..e1a089b44ca 100644
--- a/esphome/components/template/binary_sensor/template_binary_sensor.h
+++ b/esphome/components/template/binary_sensor/template_binary_sensor.h
@@ -8,6 +8,8 @@ namespace esphome::template_ {
 
 class TemplateBinarySensor final : public Component, public binary_sensor::BinarySensor {
  public:
+  // User provided, not "= default": `new(p) TemplateBinarySensor()` would zero-fill .bss that is already zero.
+  TemplateBinarySensor() {}
   template<typename F> void set_template(F &&f) { this->f_.set(std::forward<F>(f)); }
 
   void setup() override;