diff --git a/README.md b/README.md
index 86ca17b..84d7d0e 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,12 @@ Mainboard:
 
 https://github.com/peterloes/MOMO
 
+Optional components:
+
+https://github.com/peterloes/Booter_RFID-MS_MOMO_TAMDL
+
+https://github.com/peterloes/Clock_receiver_RFID-MS_MOMO_TAMDL
+
 Manufacture:
 
 https://github.com/peterloes/Scales/blob/master/Getting_Started_Tutorial/5_Supplier.txt