diff --git a/README.md b/README.md
index 979edff..4ff863c 100644
--- a/README.md
+++ b/README.md
@@ -20,17 +20,10 @@
 Used the following development tools;
 
 <ul>
-  <li>Visual Studio 2015 with Visual Micro extension for arduino code.</li>
+  <li>Visual Studio Code with PlatformIO.</li>
   <li>Android Studio for mobile app development.</li>
   <li>Diptrace for schematic & pcb.</li>
-  <li>Sketchup for mechanical drawings.</li>
 </ul>
 
-The arduino project requires the following libraries;
 
-  https://github.com/bblanchon/ArduinoJson
-
-  https://www.arduino.cc/en/Reference/Wire
-
-  https://www.arduino.cc/en/Reference/SoftwareSerial