From a0dd051511545e4d3022be486b9a5af02eb3e98c Mon Sep 17 00:00:00 2001
From: Kevin Hester <kevinh@geeksville.com>
Date: Sat, 16 Jan 2021 11:41:28 +0800
Subject: [PATCH] turn off eink backlight

---
 src/graphics/EInkDisplay.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/graphics/EInkDisplay.cpp b/src/graphics/EInkDisplay.cpp
index 2b530c0cb..44d38f22d 100644
--- a/src/graphics/EInkDisplay.cpp
+++ b/src/graphics/EInkDisplay.cpp
@@ -122,7 +122,8 @@ bool EInkDisplay::connect()
 #endif
 
 #ifdef PIN_EINK_EN
-    digitalWrite(PIN_EINK_EN, HIGH);
+    // backlight power, HIGH is backlight on, LOW is off
+    digitalWrite(PIN_EINK_EN, LOW);
     pinMode(PIN_EINK_EN, OUTPUT);
 #endif