diff --git a/README.md b/README.md
index c817396..992a68f 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,10 @@ Feature :
   - Show real time PH reading , Room and Water Temperature
   - Use keypad for enter "Calibration Mode" for read the PH reading for PH calibration
   - Serial Port communication via Arduino UNO USB port , send command to UNO for get back the PH and Temperature readings.
+  - use mysensor to send data info
+  - use eeprom to store data of calibration
+  - use peristatic pump to add ph up/down
+
+
+
+first version : https://github.com/kevinlohk/ArduinoPhMeter