From 594cb0cc1e94b478aac755025f0912b452aa2845 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20G=C3=B6ttgens?= <tgoettgens@gmail.com>
Date: Thu, 3 Apr 2025 02:15:12 +0200
Subject: [PATCH] reinstate M1 Backlight (#6484)

---
 src/graphics/EInkDisplay2.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/graphics/EInkDisplay2.cpp b/src/graphics/EInkDisplay2.cpp
index 27117641e..d2d373d24 100644
--- a/src/graphics/EInkDisplay2.cpp
+++ b/src/graphics/EInkDisplay2.cpp
@@ -128,8 +128,13 @@ bool EInkDisplay::connect()
 #ifdef PIN_EINK_EN
     // backlight power, HIGH is backlight on, LOW is off
     pinMode(PIN_EINK_EN, OUTPUT);
+#ifdef ELECROW_ThinkNode_M1
+    // ThinkNode M1 has a hardware dimmable backlight. Start enabled
+    digitalWrite(PIN_EINK_EN, HIGH);
+#else
     digitalWrite(PIN_EINK_EN, LOW);
 #endif
+#endif
 
 #if defined(TTGO_T_ECHO) || defined(ELECROW_ThinkNode_M1)
     {