diff --git a/README.md b/README.md
index a3296fb..711f717 100644
--- a/README.md
+++ b/README.md
@@ -4,12 +4,7 @@ And C implementation http://koti.kapsi.fi/jpa/nanopb/
 
 Submodules
 https://github.com/google/protobuf
-https://github.com/metormote/nanopb deze
-or
-https://code.google.com/p/nanopb/
+https://github.com/nanopb/nanopb
 
-library
-https://code.google.com/p/tm1638-library/ (TM1638 Library v2.1.3.zip)
-
-tutorial
-http://tronixstuff.com/2012/03/11/arduino-and-tm1638-led-display-modules/
\ No newline at end of file
+hardware
+http://www.dfrobot.com/wiki/index.php?title=Arduino_LCD_KeyPad_Shield_(SKU:_DFR0009)
\ No newline at end of file