diff --git a/user_setups/esp32/d1-mini-esp32_ili9341.ini b/user_setups/esp32/d1-mini-esp32_ili9341.ini
index 69433d92..87914182 100644
--- a/user_setups/esp32/d1-mini-esp32_ili9341.ini
+++ b/user_setups/esp32/d1-mini-esp32_ili9341.ini
@@ -21,7 +21,7 @@ build_flags =
     -D TFT_DC=5
     -D TFT_CS=26 
     -D TFT_RST=-1        ; RST
-    -D TFT_BCKL=-1       ; None, configurable via web UI (e.g. 21)
+    -D TFT_BCKL=22       ; D1 = GPIO 22
     -D TOUCH_CS=17       ; (can also be 22 or 16)
 ;endregion
 
diff --git a/user_setups/esp32/huzzah32-featherwing-24.ini b/user_setups/esp32/huzzah32-featherwing-24.ini
index 672f9b01..c9404dca 100644
--- a/user_setups/esp32/huzzah32-featherwing-24.ini
+++ b/user_setups/esp32/huzzah32-featherwing-24.ini
@@ -22,7 +22,7 @@ build_flags =
     -D TFT_DC=33
     -D TFT_CS=15
     -D TFT_RST=-1  ; RST
-    -D TFT_BCKL=-1 ; Solder the LITE pad to a PWM enabled pin of the ESP.
+    -D TFT_BCKL=21 ; Solder the LITE pad to a PWM enabled pin of the ESP, like GPIO 21
     -D TOUCH_CS=32
 ;endregion
 
diff --git a/user_setups/esp32/ttgo-t7-v1.5_ili9341.ini b/user_setups/esp32/ttgo-t7-v1.5_ili9341.ini
index 281d109c..ecffb439 100644
--- a/user_setups/esp32/ttgo-t7-v1.5_ili9341.ini
+++ b/user_setups/esp32/ttgo-t7-v1.5_ili9341.ini
@@ -21,7 +21,7 @@ build_flags =
     -D TFT_DC=5
     -D TFT_CS=26 
     -D TFT_RST=-1        ; RST
-    -D TFT_BCKL=-1       ; None, configurable via web UI (e.g. 21)
+    -D TFT_BCKL=22       ; D1 is GPIO 22
     -D TOUCH_CS=27       ; (can also be 22 or 16)
 ;endregion