diff --git a/README.md b/README.md
index 5ff89d0..13a8b46 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,15 @@ m5stack ATOMIC PortABC Extension Base:
 
 https://shop.m5stack.com/products/atomic-portabc-extension-base
 
+m5stack grove connectors:
+
+YH2.0-4P
+
+Jst PH2.0 4 pin
+
+
+
+
 ## TODO:
 
 - UV Light intencity