From aa47f546299c5449a6a0a34a3f4a66101c9866d9 Mon Sep 17 00:00:00 2001
From: Ollo <Ollo@host>
Date: Tue, 15 Oct 2024 21:41:51 +0200
Subject: [PATCH] List GPIO requirements

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index 6c7b697..54c5033 100644
--- a/README.md
+++ b/README.md
@@ -18,3 +18,22 @@ Generate a PCB with the following features:
 
 # Software
 * Controllable via USB-UART, simple CMD-control
+
+## Interfaces
+* USB-UART
+* GPIOs
+ * RelayA
+ * RelayB
+ * RelayC
+ * RelayD
+ * FAN-PWM
+ * FAN-IN
+ * https://github.com/0110/EADOGS104LCD4Pi
+    * MOSI
+    * MISO
+    * SCLK
+    * CE0
+    * LCD Backlight
+ * Button (optional)
+
+