From 14e13c2c6c7763e559cfbc75f6bfbef8668c4124 Mon Sep 17 00:00:00 2001
From: qqqlab <46283638+qqqlab@users.noreply.github.com>
Date: Tue, 10 Nov 2020 15:50:04 +0100
Subject: [PATCH] Update README.md

---
 README.md | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 53e6d7b..9fd587f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,31 @@
 # DALI-arduino
 DALI LED Lighting Interface
 
-Control LED Drivers with Arduino ATMEGA328. Needs a DALI hardware interface such as Mikroe DALI click.
+Control LED Drivers with a microcontroller.
+
+Examples for Arduino ATMEGA328 included. 
+
+Core code does not depend on Arduino, can be used in any C++ project by adding hardware specific code. 
+
+Needs a DALI hardware interface such as Mikroe DALI click. Or use this very basic DALI interface design for your experiments. 
+
+```
+  DALI BUS Power   +---------+
+      12-22V >>----+ 100 Ohm +--------+--------------------<< DALI +
+                   +---------+        |
+                                      |
+                   +---------+        |
+       uC RX >>----+ 10K Ohm +--------+ 
+                   +---------+        |                 
+                                      |                       DALI BUS
+                                     /
+                                   |/
+       uC TX >>--------------------K    PNP Transistor
+                                   |\
+                                     V
+                                     |
+                                     +----------------------<< DALI -
+ ```
+ NOTE: For this interface, reverse the polarity of TX in the code.
+ 
+ 
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