diff --git a/README.md b/README.md
index 220aa3c..dc53973 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,10 @@
 # Hohm-Phone
+
+## Hardware Connections
+-->|-- Indicates diode
+
+WAKE_PIN -->|-- GSM_RING --- RI(Fona)  
+WAKE_PIN -->|-- BUT_ANS ---- Button --- GND  
+WAKE_PIN -->|-- BUT_END ---- Button --- GND  
+
+BUT_ANS and BUT_END have pull up resistors