From b22a1957e86c22ab2633652281ef2152f9b28a25 Mon Sep 17 00:00:00 2001
From: DanKoloff <lubchoh@yahoo.com>
Date: Fri, 12 Feb 2021 11:29:48 +0200
Subject: [PATCH] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index c1cc039..6540963 100644
--- a/README.md
+++ b/README.md
@@ -16,3 +16,5 @@ UEXT pinout:
 |5 - SCL|6 - SDA|I2C pins used for touch component|
 |7 - D/C|8 - MOSI|SPI pins sans MISO used for display|
 |9 - CLK|10 - CS|SPI CLK/CS for display|
+
+If you are using I2C, then the RX wire can also be used to control the brightness. This requires midfying the SJ2 jumper. Refer to the schematic around FET1.